Just thought I would share..... I recently signed up for a Wamu Platinum Cash Back... They have a great deal going on, but I think they have to send you an invitation, I could never find the offer on their website.
I got approved for $20,000 with 0% APR on purchases till Jan/2010 (yep 2010)...
The card gives btwn 5-10% cash back for first 6 months, then has a typical cashback structure similar to the other ones out there.
GREAT PERK, they give you your free credit score on their website with a whole slew of details just for being a member....
GREAT card, and even greater if you bank with them, as your balance is always listed as another account on their banking site....