[teshy2]

I fully agree with WanDaMan on this one, the most important thing in development is never fancy graphics or programming, it's about making something fun. You can do that with very little resources, just look at most of the classical NES games, most of them would bash Half Life 2's butt any day.

As for what idea to go with, use the concept which you like the most. You have to love your idea for a server, or it won't turn out any good.