chudsy, you have a LOT more homework you need to do on your own before people here can reasonably help you.
For example, how do you intend to fly from Capetown to Goa? Goa isn't even a OneWorld destination -- NO OneWorld carrier flies there. In fact, the only ways into India is via LHR (BA), DXB (CX), BKK (CX), HKG (CX) ORD (AA), or SYD (QF) -- no flights from Africa.
Spend some time reading the sticky posts in this forum, and spend some time reading through all sorts of old posts until you begin to understand the basics.
Then, as others have mentioned, you need a tool to help you figure out what flights/destinations are available. The "official" OW timetable (downloadable desktop product) actually includes a handy RTW/OWE trip planner function that incorporates flight schedules and the fare rules. This will be very helpful.
http://www.oneworld.com/travel_planning/home.cfm
Then the folks here can help you maximize your itinerary, for miles, F service, etc.