They have new bonus TOS so bonus hard to clear but still is good to me:

Code:
Get A 75% Reload Bonus - UP TO $350 - Limited Time Offer!

Redeposit at UltimateBet from October 10 2009 through October 10 2009 and get a hefty 75% bonus on your deposit - up to $350 - in Bonus Dollars*! 

To claim your bonus, enter code: HOLDEM75 in the promotional code box at the bottom of the deposit page 

One quality that all good poker players share is taking advantage of situations with a positive expectation. And for 1 days, UltimateBet is offering our players a risk-free way to fatten up their poker bankrolls. 

That's $350 of free money. That's a bit of bad-beat insurance. That's extra ammunition. That's an offer that's too good to pass up. 

To take advantage of our Reload Bonus, simply redeposit $10 or more - using any one of our deposit methods - anytime between 00:01 EST on October 10 2009 and 23:59 EST on October 10 2009. 

…Earning free bonus dollars couldn't be easier!