rat 9 isnt a particulalry good mouse. the contagion and infection are better.
as for the keyboard the mk 80 with cherry reds or browns comes in at 120 if you buy directly from q-pad if you dont you will only have the option of cherry blues which are good for typing but gaming not so good.
look for keyboards that use cherry red or brown and if your particularity heavy handed then cherry black are for you. you can spend 60+ on a gaming keyboard but it wont be as good as a basic mechanical keyboard. i just ordered the mk 85 with cherry reds. i was gonna get browns on the mk 80 but as the mk 85 was only £4 more i decided against it and got the reds. which are great for fps which is what i play most.
like i say theres a lot of things to look at when considering a keyboard. if you want the best then mechanical is for you. if you want looks pretty then membrane/dome keyboards will do but they will never compete with tactile feedback or reaction time and essentials like true nkroll over...
the cheapest mechanical keyboards come from cherry themselves. they are just basic keyboards with no fancy things like usb or back lighting, typically you will pay 50-60 for a basic mechanical like the cherry G80 or qpad mk 50. if you need backlighting which many gamers do your looking at quite an increase in price. typically 100+ for the better 1s
http://www.overclock.net/t/491752/mechanical-keyboard-guide#post_6025244 have a look at this list. there keyboards listed by keytype.
http://geekhack.org/showthread.php?29596-Ripster-s-N-key-Rollover-Guide some great info here...