Hi. I wanna change my PSU for one that have some headroom for possibly upgrades. Both are sli/crossfire capable and for what It seems are far better tha my 550W CM. Need to say that both are expensive but Its the better I can afford now. The Antec model have 650W with 3 rails of 19A each, the TT have 600W with 4 rails of 18A each and have also the ability to plug only the neccesary connectors to the PSU. Which one you'll pick up?? Thanx.