I'm an armchair tennis player, but for those of you who actually play I thought you might be interested in this.
It's a link to another forum, but the reason I'm posting it is because a pro has joined this forum and basically just said to everyone "Ask me anything to do with being a pro tennis player."
His name is Filip Peliwo, a young, upcoming Canadian tennis player who is offering tennis techniques and an insiders view of the circuit.
He's won the boys' Jr Wimbledon and USO, and just been awarded Canada's top junior athlete of the year.
He is extremely candid, and pretty much answers anything anyone wants to know.
Check it out:
http://tt.tennis-warehouse.com/showthread.php?t=442583