[Simon]

Here are some sites that can help you pick which colors work best with others. Some of the sites are a little tricky to figure out, but once you do, they're a fast way to see lots of potential text/background combinations within a target range.

http://home.i1.net/~dwolfe/hexmixer/

http://www.visibone.com/colorlab/big.html

http://www.zspc.com/color/index-e.html

http://soiuser.hyperchat.com/lg/colorspe.htm