Hey man - Ive written one that does upto 10,000 domain updates daily and takes in chameleon subbers gals and rotates them.
Thing is - MSN wont index a large tgp - google is - errr - well
www.fuckedgoogle.com and yahoo is as slow as a snail.
Its the traffic that counts - anyone can program a computer.
But - having said all this - good luck with it anyways.
MrChips.