I've never revealed to anyone on GAF, that I'm in a wheelchair. Why not now?
I was in a car accident back in '03, in which my spinal cord was bruised at the C5 level. Fortunately, it wasn't a complete severing. The accident left me with all of the feeling in my body, but all I can move below the waist is some of my toes. I also have little gross motor function in my fingers, so I'm technically diagnosed as a quadriplegic, as I have little to no dexterity.
You'd think that this would stop me from gaming. But I said HELL NO. I just realized that there will come a game which I haven't enough function for, and that would be OK.
When I first got out of the hospital, after 3 months, I started off with the PS2, playing JRPGs. I beat the Xenosaga series, then my first real challenge was Odin Sphere. Beat that. GrimGromoire. Beat that.
So I eventually bought a cheap Toshiba laptop, with a crap GMA950 integrated gfx. I downloaded the Dawn Of War demo, and was shocked that the laptop could run it, but more shocked that I could handle the online micro. I ended up playing DoW at the 1500 level (Necrons lol). The game ran at like 15fps though, so I upgraded to a Dell with an 8600M GT.
Now mind you, I can only use my index fingers, so using a standard computer mouse is out. That's why I have to stick with using the touchpad.
Since then, I've successfully played/beaten:
Entire Dawn Of War series
Mass Effect 1 (on Insanity)
Mass Effect 2
Dead Space
Dragon Age: Origins
Alpha Protocol
Borderlands
Crysis
Crysis Warhead
Dark Sector
Fallout 3
Front Mission Evolved
Risen
I could go on with a few more but it's getting excessive. All I'm saying is, if I can play games with just my index fingers, a laptop, and a touchpad, there are no excuses left.
My brother saw me playing Mass Effect 2 the other day, an he's like, "Dude, how do you play so well?" Honestly, I don't know. My mind runs calculations fast enough to keep me in it, I guess.
If the people I beat in RTS knew that I play with one finger on the toouchpad, the other on the keyboard.... oh man it'd be embarrassing :lol
tl;dr - Don't give up. I'm nearing 30 and will never stop gaming, even if just with two fingers.
The downside is that I'm now addicted to having the latest notebook gaming technology. It's an expensive habit.
EDIT: and while we're tossing around figures for wheelchairs, I got DAT M15 E-MOTION set up. We roll like five figure ballers.