What I would expect in a 5k build:
3930k (3960 is a waste of money, even with that budget)
2 680's (more is a waste as well) or 3 7970's (trifire doesn't seem to scale as bad as SLI)
Top-end motherboard (but this guy is probably not so tech-savy so something like a Rampage (personal preference) would be a waste sadly, although it looks good)
top-end PSU: AX 1200, or comparable Seasonic (I know there are other good brands as well, but this is what I'd pick)
1 - 2 TB WD black (yea he says he doesn't need it but in a 5k build I would want some storage, who knows he starts recording his gameplay or something, then you'll definitely need some HDD space)
2* 256 or 1 512 GB SSD (I'd take 1 512GB samsung 830 because I like the look of them over the M4s everyone is so crazy about)
Top-end sound card: No expert on this so I'll leave this to others
I would watercool the whole thing if it was mine but for someone else I wouldn't trust it so go with the best air cooler on the market (Still the noctua ND H14 (or something like that) / silver arrow ?).
Does he expect peripherals as well for his 5k ? ( Honestly I find it a bit weird when people calculate peripherals in the cost of a rig ...)
If so: a nice mech keyboard: Can't go wrong with blacks or browns
Mouse: That's pretty personal TBH. Size, grip, # of buttons, looks, Laser or optical? ... hard to choose for someone else
Screens: Well, obviously 3 or 3+1 but no idea which ones. I'd probably just get the best 120 Hz screen out there. But you know, a lot of people don't need 120 Hz and prefer the epeen of 3 screens (how bad some may be)
Speakers: again, not much experience
Headset: same as speakers but definitely not some "gaming" headset but a good set of cans and a clip on mic (or desk mic)
I have to study French so CBA to look up prizes for everything and put it in a list but this is what I'd look at with a 5k budget
PS : I read the thread title as: "5000 dollar "budget build" suggestions" and I was like: Oh you show-off ... calling 5k rig "budget"
Edited by Bloitz - 6/12/12 at 7:21am