New RAM and PSU

Okay, finally decided what to get (the clue's in the title).

Firstly, RAM. I was going to get some Corsair Value Select (2x512), but saw this for about a tenner more: http://www.tekheads.co.uk/s/product?product=603313. How good is it, and would there be any compatibility issues with the NF7-S? Otherwise, CAS 2 for the price seems incredibly good value!

Secondly, I'm probably going to get a Thermaltake 480W, but I've seen two different versions: the Silent and the Butterfly. What exactly is the difference between them?

Edit: I seem to have figured it out - the Butterfly just seems to look nicer, so I think I'll plump for the cheaper version. ;)

Finally, is Tekheads a decent store, or is there something truly terrible about them? Seemed good from the reports on the trust page, but just checking.

Thanks

Mike

I think the butterfly has braided cables, flashy fans and somes with a sase fan too

what psu do you currently have mike_w?

I've got a Chieftec 360W, but that's going into my spare rig since the PSU in that one blew. So, a perfect opportunity to get a decent PSU!

Nobody had any experience with the Patriot RAM?

And I'm going for a Tagan 480W PSU now, found it for around £55 which just about puts it into my budget!