Bumping is heavily frowned upon, and with good reason. I sift through topics regardless of what place they have on the page, so yours didn't get priority regardless. And the forum goers will answer on their own time, thank you.
I built a pretty energy efficient system just a few weeks ago, specs go something like this:
ASUS P5K EPU
G. SKILL 4gb (2x2gb) RAM
EVGA 8800GT 512mb
Apevia Telstar Full Tower ATX case
Corsair 620w PSU 80-plus efficient
2x750gb HDD Seagate Barracuda 32mb cache
I think that's about it... the $1500 includes the optical drive, XP Pro, etc. but those are the main specs. Think about something similar.
I have a Razer Tarantula and Lachesis. Both serve me well, but as for your keyboard it depends on what types of games you play (MMO vs FPS, etc). Some keyboards are better than others for macros, or comfortable fast play, or whatever. Do your research based on what you want.