so you're planning on going SLI in the future?
generally, good series are:
Seasonic Prime / G / X
Super Flower Leadex / Leadex II / Golden King
Corsair RMx / RMi / Ax(i) / Hx(i)
EVGA Supernova G3 / G2 / GS / (B2)
XFX TS Gold / XTR / Black Edition / (Core, TS & Pro)
Antec Edge