Best price I have seen recently from a well known merchant, at a cracking price, plus a free (if slightly crappy) game to boot!
I'm kicking myself for buying a 5770 a couple of months back with the prices now!
Also, XFX are generally regarded as one of the better graphics card manufacturers, and their cooling solutions are a good step up from reference ones.
Specs are as follows:
# Graphics Processor: Radeon HD 5830
# Memory: 1024MB GDDR5
# Interface: PCI Express x16 (PCI-E 2.1)
# Core Clock: 800MHz
# Memory Clock: 4000MHz (Effective)
# Memory Bandwidth: 128.0GB/s
# Stream Processing Cores: 1120
# Cooling System: Dual slot fan with auto fan control