Hey Matty,
We've all been where you are right now...it can be overwhelming. In my short time in the home recording scene, Tweakhedz is by far the best website to start learning. Here is the forum link.
http://studio-central.com/phpbb/index.php
Another good one is this place.
http://www.homerecording.com/bbs/
Spend a couple of hours at Tweak and you'll come away with a better understanding of what type of setup might suit your needs.
Good luck!
Danno