Our deal of the week this time is a pretty simple one. Newegg is selling Antec's black mid-tower ATX case, the VSK-2000, for $25 total. The initial price is $34.99, but there's a $10 mail-in rebate and, if you enter the promo code "junefsant", you can get free shipping. The VSK-2000 looks reasonably decent for a basic enclosure, and it even has room for a 120-mm fan around back.
The case will accept mATX and mini-ITX motherboards, as well as full-sized ATX boards, and it has six 3.5" drive bays. You could pair it up with an affordable PSU, a cheap DIMM, and a $69 Atom motherboard to make a simple home storage server. If you prefer something more competent, a dual-core Atom plus Ion motherboard for $159 might do the trick for you. And I'd better say something about cheap, AMD-based mATX motherboard and CPU combos now that we're in this territory. 75 bucks for a "real" CPU, a mobo with a GeForce IGP, and a CPU cooler would be unwise to overlook.