Hey john.

I'd agree wiht the advice to wait till u have liek £350 or so to spare and then build a low end gaming oriented rig, salvaging whatever you can.

If your on a budget dont get a razor mouse or your not gunna have anything left for decent components.

get a trust / saitek mouse if u want something high sensitivity and go for a cheap trust / saitek gaming / multimedia keyboard.

To sum up:

1. Cheap brand Gaming mouse / keyboard
2. Wait till u have enough to essentially build a new rig cheap-o