Just FYI, you don't need to spend nearly that much on a power supply. You can get one from Hobby People that's 20amps for $60.
http://www.hobbypeople.net/gallery/158301.asp
Or you can go a slightly DIY route and get two 30amp power supplies (60amps total) for $40. I went this route, and sold one of the power supplies, since 30amps is more than enough.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz