http://www.dreamcash.com works well on out Asian traffic (Japanese, Chinese, Korean)
We also use a couple of Japanese language gay sponsors like 99bb.com (who i beleive also have some straight sites) in addition we heavily promote the
http://www.ko-company.com movie stores on our Japanese trafficked gay sites.
As for the payment types used in the Asia Pacific, despite some common mis-conceptions (started primarily by dialer companies, for obvious reasons) they do have credit cards and the Chinese market alone grosses over US$6 billion a year (that figure is steadily growing to) in credit card transactions.
That being said, rather than utilizing credit cards for their purchases, many of the citizens of the Asia Pacific tend to prefer debit cards or, cash to pay for their transactions both on and offline.
The major problem we face in the industry though with surfers from many of these countries is that, to date, there hasnt been any decent expansion into those markets and, because of this, they are still relatively untapped by the masses.