Wow! Thank you so much for all the replies, so much food for thought.
Apologies for not really elaborating in my original post regarding budget etc. Also for the delay in replying, have been back in Wales visiting family.
My budget is around £300 - £350 max (less would be better but at the same time i understand you get what you pay for and would rather spend £300 on something that i will not outgrow in a long time or ever rather than pay £150 for something that will need to be upgraded in a years time), i was originally looking at getting a drum machine like an Alesis SR16 and the Arturia microbrute (which came in just under £350 after shopping around) and to spend lots of time dabbling with them but the wife (who always sees sense bless her) then pointed out after we watched some youtube videos that while these things do look awesome and a lot of fun, it will be such a steep learning curve to get particular sounds out of the microbrute let alone try to compose songs, then why not get something you can actually 'play' songs and learn some basic music to begin with and if/when the bug bites can always expand at a later time. And i thought that would make more sense as in my inexperience the microbrutes/bass station's etc. seem to be noise generators rather than music makers in inexperienced hands (which my hands are most definitely). Looks like it would be awesome for trying to cover Pink Floyds 'On the run' tho
I am kind of old fashioned/stuck in my ways and would rather get standalone instruments rather than plugging a midi controller into the pc and using some sort of DAW. Plus there is a guy i started working with recently who is in a band and knows lots other musicians in bands who like experimenting with different instruments and they always invite friends of friends over to jamming sessions just to mess about so would be useful to have some instruments i can just put in the car to bring along without having to worry about buying a laptop (i only have a desktop pc) which would destroy any 'play money' i have to spend on a keyboard/synth, once i can at least play some basic stuff in a few months after lots of practice.
I think for short term it would make more sense for me to just pick something up relatively cheap with full sized keys that one can program a basic drum rhythm in to and be able to play keyboards over/with the drums, with the possibility of getting sounds similar to Gary Numan 'Cars', Van Halen 'Jump' and Nine Inch Nails 'Closer' as well as maybe having option to tweak the sounds on the fly, if possible. These are just a couple of examples to give an idea of the ballpark for the type of sounds i am looking for.
Will be taking some lessons just to learn a little about playing technique fundamentals, again with that i am kind of old fashioned in that i feel i could sit and watch people demonstrating keyboard techniques all day on youtube but to me it would be the same as watching 'how to drive a car' type videos, i feel would learn more with someone showing me in person, just to start with.
Long term is (and this will sound silly), there is a video of one of my favourite bands on youtube (Nine Inch Nails - the main reason i am looking at learning keyboards/synth) where Trent Reznor (the man who basically is NIN) is messing about with what, due to my lack of knowledge is a 4 x 4 set of pads that he seems to be programming certain sounds/rhythms into at the start of a song and being able to not only name the device he is using but what exactly he is doing with it. That video can be found by searching 'Nine Inch Nails Burn live on stage Melbourne' (please be mindful it's only the first 40 seconds or so are what peaks my curiosity and if you happen to like the song and watch all the way through there are extreme strobe lighting effects going on, especially towards the end).
Thank you @Buggles for the Yamaha PSRE 363 and Casio 6200 suggestions, i will have a look on youtube at those 2 models. Hopefully they tick the boxes for what i am looking for at the moment and would have some change for something cheap to mess about with drone sounds as well although that is not a priority.
I have a nice pair of Sennheiser headphones which i will be using for the time being so will not need to buy an amp and speaker for a little while.
I will also check out the Korg PA700 video manual to hopefully give a better idea. I live close to Oxford, i visited PMT but it was quite busy so didn't really have much time to have a proper look around, the only instruments that seemed to be in stock were out of my price range as well.
Thank you again for all the replies from everyone, what an awesome community i seemed to have stumble across on here.