From our database, programs with a published CPA:
Red Hot Revenue - All Playtech Casinos, US Not Allowed (75 - 500 CPA)
Affilishare - (100 - 300 CPA)
Casino Blasters - All Playtech Casinos, US Not Allowed (100 - 300 CPA)
CPays (Don't use them, they will rip you off) - All Playtech Casinos, US Not Allowed (100 - 300 CPA)
Gaming Partners - All Playtech Casinos, US Not Allowed (100 - 300 CPA)
Earn United - Realtime Gaming Casino, US Allowed (50 - 250)
Euro Partners - Playtech Casinos, US Not Allowed (75 - 250 CPA)
Prime Partners - Microgaming Casinos, Some US Allowed (75 - 250 CPA)
G3 Partner - Microgaming Casino (great group), Some US Allowed (50 - 200 CPA)
Referback - Microgaming Casinos (great group), Some US Allowed (200 CPA)
Gambling Wages - Realtime Gaming Casinos (dodgy group), US Allowed (60 - 125 CPA)
The rest have so low of CPA as to not be worthwhile for you. Your best bet is to pick casinos from the original list I gave you (check out our reviews, linked to from homepage) and ask them for CPA.