JoJaCa

Buy cycle does a custom rim build with 29er crests and 29er arch's on Hope Pro 2 Evo hubs - very good. R 5 800. Custom built for your weight. http://www.buycycle.co.za/index.php?dispatch=categories.view&category_id=921

I'd say Silverback. It's lighter (12.2kg vs 13.6kg). Although they have the same fork, the Silverback's wheels are better (ZTR Crests vs ALL TERRA HP17)

I don't think that's a 2009 XT rear derailleur. Check on the internet what a 2009 xt derailleur looks like. And anyway, for that price, look at bike shops, or Bargain the price down.