Affiliate Marketing Secrets

I am currently using 3d cart. But have had issues. If you can suggest any ideas I’d appreciate it!
I need more than 30G a month (pref. unlimited)
Integrate with quickbooks
Affiliate/Coupon Promotion capabilities.
Flash capabilities (not necessary)
I know I can get a website designed, but I’m in the middle of starting a business, and growing, and not quite ready for having one built.
thanks in advance!