The cart will handle this automatically. It will do recurring payments for items that have Terms defined and single payments for those that don't even if they are in the same cart.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.