I second DPete27's suggestion! If you don't mind getting an ITX board, the PC-Q11B would be a great choice. I have it in the living room right now, unboxed. It is
awfully nice, and you could fit an ATX PSU in there if you don't want to mess with the external power brick (perhaps a fanless one)! I was planning on getting a Llano system for it (HTPC) but at the last moment I decided that I'd just wait until Trinity and Ivy Bridge are out so it'll hopefully do even better
with casual games at 1080p (come onnnnn Steam, get that Big Picture mode done already!).
Anyway, it's well-built, will hold your drives, has USB 3.0 on the front, has rubber grommet thingies for the hard drive mounts, and is smaller than your current case. How much smaller? Convert some inches to mms here:
425 mm (W) x 170 mm (H) x 425 mm (D) (yours)
200 mm (W) x 326 mm (H) x 260 mm (D) (Q11B)
difference, or half a cubic foot or so, depending on which you can visualize. Make sure it's not too tall (it's much taller than your current box).
/edit: I just checked, and Newegg has the height wrong (12.4" — it's actually 325 mm, LL say 326 — either way, Newegg's almost half an inch short).
/edit 2: after looking around, I see that people are saying some of the versions came ONLY with an internal USB 3.0 motherboard connector as opposed to external pass-through connectors with a optional internal Y-adapter. Mine came with pass-through connectors and a Y-cable that terminates in a 20-pin USB 3.0 motherboard connector. WEIRDLY, when I go to Newegg (where I bought it from) to look, their product image shows that it comes with a Y-cable converting to a 2x5-pin USB 2.0
Could it be that LL has shipped two different kinds of Y-cables with this product, and
none at all?
/edit 3: Newegg sells a white version of that case
, too, the PC-Q11A. In those photos it actually appears slightly off-white, like some beige got mixed in. Haha! If that's not an artifact of their lighting setup, that's got a funny retro vibe to it! I wonder if that was intentional? The Lian-Li site for the product doesn't have the beige tint
... hm. Oh well.
/edit 4: oh god, I need to go for a run. Newegg is also apparently using the wrong code for the white version of this case. PC-Q11A should be the unpainted one (aluminium) whereas the white should be PC-Q11W. It's a possibility that they are actually selling the aluminium model and they're using the wrong images, but those look like staff shots, so I'll wager they're just using the wrong code.
/edit 5: would you look at that? Newegg lists the PC-Q11W as discontinued
and refers to it as the "Silver Aluminum" model. Haha! Oh, retail.
/edit 6: and you can't use it anyway. Ah well! You could get 2x8GB but... it looks like the cheapest one is $109 (it's 10-10-10-28 1600).