Alright folks, it's buying time and I need suggestions. The PSU is something that can be, at least to some extent, a future-proof purchase...and that's my intent. The 510 Deluxe is definitely out of the question because I want the six SATA and a PCI-E connector for future use. I don't see myself splurging on SLI (or whatever ATI calls it) in the future, but as long as there is a lottery I won't rule it out. So which model shall I opt for, the Express or SLI?