I'm also in the planning stages of my first build, I was looking at some stuff from cnc4you.co.uk

Nema 23 3.1Nm steppers for £25
6.0A 80V Driver - Cw8060 for £62
600W PSU for £56

How do those prices compare? PS I'm also cluless so you might want to check with one of the more experinced members before throwing your wallet at the screen. :)