Gimme your serial number. I'll wait and get it for free!
Damn, I was going to ask..
.OP, if it's just your download speed, then buying it isn't going to make one bit of difference. I always wait until the first flurry of sever activity is over. I have 3 Macs to do, and a fast BB connection, but if the whole Mac community is downloading ML it's going to slow things down.
Early hours of the 26th for me...A fast BB connection isn't going to help if Apple's servers are heavily populated.