are there any finger stretching/ hand stretching exercises you can do to loosen up your hands?
maybe that will make playing a bit more comfortable?
berti
Zoob posted a good one on the whistle board here:
http://chiffboard.mati.ca/viewtopic.php?t=18355&highlight=finger+spread
Go easy at first though!
Play a lot of Counter Strike! 
Just make sure to spread your controls over the entire keypad
and it’ll feel like arthritis within a few short hours.
Cheers!
/MarcusR