Empire Poker

20% match bonus on initial deposit up to a maximum of $100. Minimum deposit of $20 to qualify for bonus.

Play 500 hands (where you just get dealt cards), within 30 days of deposit to get $100 (equals 5 raked pots per dollar).

In terms of match percentage and total sign-on bonus, Empire doesn't seem so attractive at first. However, to clear the entire maximum bonus, you only need to play 500 raked hands within 30 days. A couple of days of around 4 hours per day and you will have cleared the max bonus. Very easy to qualify for it.