Not too bad, but I don't know the chips too well.
I'd go for the 1T for 11 bucks more, as to get the 360gigs later, will cost a whole lot more than 11bucks.
For an office setup the 4670s just fine... You can easily drop the power supply though unless you plan on a much bigger gpu. But looking at the prices, wow...
Newegg.com - CORSAIR CMPSU-550VX 550W ATX12V V2.2 SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply
will work, but its only 6 bucks cheaper.
You technicaly get away with a 430cx at 20bucks after rebates too, but for a 5plus year wanted life, i'd go with the 550vx or 650tx