^^^ Yeah but even the cheaper ones still have strong ratings. The 350w Sparkle Hi-Q that I had ordered came in a couple days ago and I moved my rig over to that case/PSU, its rated way higher than the 300w PSU in my Inwin full tower (Fortron made I assume, since the model is FSP-xxx). That 300w worked just fine for my 2 7200rpm hdds, 2 cdroms, barton 3200+, 9800 pro, etc... so this one is plenty.
That said, I still wish I would've sprung the extra $5 to get a Fotron-made one, but its still a Sparkle so no biggie. Definitely cheaper than the Antec's, which would be pretty overkill for any system similar to mine.