Honestly The only reason I'm replacing anything is because I've found that my keyboard does have some serious lag (it's wireless) when I game, but works fine other times. The mouse on the other hand is perfect, aside from only having 2 extra buttons (Back and Forward). Plus they both use the same USB receiver.
Would a game pad be a better investment? Any suggestions for one around $50 bucks? I'm kind of looking at the Razr Nostromo but I'm not a fan of the key layout.
I mostly play MMORPG , RPG, Action Adventure and a little FPS, but not much.