You guys are 12V amperage freaks

Remember, he's only building a basic system that he'll be overclocking.
He's not going to be running 6-8 fans, 6 optical drives, LEDs, cold cathodes, and a phase changed A64 overclocked to 3.2ghz, now is he?
If he goes with the 6600GT, keeps both hard drives and optical drives, and goes with overclocking a winchester 3200+ on air cooling...he's not going to need high amps. Granted, there's no harm in having them at all, but those of you recommending 25-30 amps for his 12V line on his PSU are going way overkill.
I've got a system similar to what his will be, except instead of a winchester, i've got a mobile barton at 2.4, and instead of a 6600GT, i've got a 9700 pro. I'm using an Enlight 420W 18A @ 12V PSU. I've used 3 of these PSUs so far, and they do the job just fine. I was able to overclock most of my mobile bartons to 2.6, but couldn't keep them stable due to heat issues (only have a TT Volcano 7+). My lines were always rock solid. Now, I'm not trying to recommend my PSU for him. I like his current choice much better. I just wanted to comment on the overkill of amperage I so often see. The Antec True430 that he has right now will be great for him.
*Edit*
BTW, just out of curiousity. What quality PSU's right now have detachable power leads? I'm looking to get a new PSU when I do an overhaul on my rig in January, and I don't want to have nightmares over all the dangling extra leads that never get put to use, like in my current situation (kills my airflow, not many places to wrap them to).