I play on keyboard all the time. Sucks for aiming but then again, you can get away with it if you are playing FO (which I play most of the time). Plus I tend to switch between my desktop and laptop...
you can get a Pow Sato 5/150/45/0 for 2 PDs. I'll leave a link to his shop right here. Also if you are low on PDs, might as well try selling some eggs. You can sell 2 eggs for 1PD right now...