When you get enough posts & can priv message other members on here (I'm not sure but I think you need 10posts before you can send other members priv. messages???) send me a message with your CAKE email & I'll ship you the min. transfer on there of $5 to get ya started
. (I'm ShawnDweeb on Cake)
Sorry I don't know of any sites for US Freerolls.... although DoylesRoom (AmericasCardRoom) I believe might have some running on Fridays (one per hour... at least they did before they changed their name over from DoylesRoom to ACR a few weeks ago).
Also, Cardschat has some great freerolls on CAKE & Intertops
. Once you get enough posts to apply for the Freeroll Club (I think it's 75 quality posts) you can apply for membership (might seem like ALOT of posts.. but it's very worth it!!!.... and really it's not that many posts... look how many I've got.. eek!!!)