Affiliate program with direct download link US allowed

[Emil]

What affiliate program do you recommend that offers the option of putting a direct download link to the software with the affiliate code embedded in it?

US players must be allowed.

If there are good freerolls on the site it is a plus but the most important thing is that it is appealing for most players.

Pokerstars doesn't seem to have this option and not Full tilt either as far as I can see.