An alternative to the awesome Canon 600EX-RT is this Sigma flash gun, which is also packed full of features and very powerful. The build quality of the Sigma isn't as good as that of the Canon, but this is to be expected. If you need a powerful external flash for your Canon and can't justify the cost of the Canon 600EX-RT this Sigma is well worth looking in to.
$230.00 The Stamina(r) Body Trac Glider offers a unique full range of motion rowing action with its oar-like rowing arms. Adjustable shock resistance allows you to easily change the level of your workout. Additional features include a multi-function monitor, comfortable molded seat, and sturdy steel frame construction. The unit folds for easy storage when not in use.
Nikon 80-200mm f/2.8 AF-D, a cheaper alternative to 70-200 f/2.8 VR II. You can find used ones for very cheap price at KEH.com. This lens gives the same picture quality as the newer 70-200 VR I & II, the only downgrade is it focuses a bit slower (cuz it uses screwdriver, about 80% as fast as the VR II) You can find more details at the Ken's review and comparison http://www.kenrockwell.com/nikon/80200.htm