outoftowner

Best to see which frame suits you best. You can always upgrade parts.Look around at some 2011 cannondale's on sale, you can get a good deal,as their frame design are far superior. Tough decision,but an enjoyable one.

Look at the classifieds on the hub.More bang for your buck.And yes 29er all the way.You won't look back.Good hunting

If you are plan is to get in shape,then get a +-R 4000 bike(pref.Silverback,Schwinn),and take it easy within your own limits.If you feel still up for it after a couple months of riding, then it will be time to seriously dent your bank account. Spending R20k on a bike and smashing it on singletrack... Priceless!