from someone who recently switched to Diamondback 3G from a Logitech Trackman
ehhhh..... personal preference, but get something comfortable
almost all mouse are at least optical now, we've come a long way since a good ol' ball mouse (those just sucked...)
but on 2nd thought... those cheap opticals in schools suck too haha!
although I can tell you the Razer is more sensitive than my trackman
and the extra buttons are useful even when not gaming
+1 for getting a good mouse
keyboard? unless I missed something, gaming board only adds shorter keystroke, maco buttons, back lighting and or small lcd.
not much changed in keyboard technology
so unless you really are a "PRO" (someone who actually competes for cash prize) I don't think you need that 10ms advantage
or a WoW player... who macros all day...
but I do love my back lit board
+1 to monitors being measured diagonally