Squee, the Schulze chargers can do that, but I have a feeling that you don't want to dish out $250+. To be able to get the 10amp charge rate you are most likely going to have to spend $200+.
There is this charger:
http://aircraft-world.com/shopexd.asp?id=3001
Can do 5s Lipo at up to 5.7amps (120watt maximum). It can do up to 25 NiMh cells. It is pretty cheap for what it does. I realize that it still does not meet your 10amp desire, though.
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