I would have to recommend the case I got - they are both the same on this
page but I got the bottom one.
The website linked above is fantastic for sourcing parts - it gives good descriptions and everything is well organised and very visual - also quite cheep.
It is incredibly cool and quiet - the master drive is intended to be mounted in an aluminium sleeve which is suspended in the air by strong Rubber bands, preventing any vibrations from the HD reverberating through the case and beyond. 1 thing to bare in mind the case will not fit long PCI cards - when I say long I mean very long, like the old Powercore card. UAD's fit fine though, the only card I had trouble with is the Powercore - bit of a school boy error on my part!
I also bought an arctic cooliing fan which is silent and comes with some arctic cooling coolant to apply between the CPU and the heatsink/fan.
If you want to get the latest specs for DAWs then I suggest checking out the PC music forum at
Soundonsound.com. Martin Walker and the guys there are pretty clued up!
Congratulations on moving from Mac - my studio partner has nothing but Macs but after he saw the performance of my PC he has decided to get a PC for Video editing, and my PC is not even high spec, I just researched and bought the right components - the correct memory is just as important as the CPU in my opinion.
Good luck,
Drammy