A set of dumbbells.. probably the adjustable kind, to save money.
A cable machine, for standing exercises (chest press, rows, chops, flys, etc). I don't do bench exercises since they're not as functional as standing exercises. But i'd have various benches or steps to do step-up exercises.
Sandbags of various sizes & shapes.
If funds allow, a variety of cardio equipment - treadmill, rower, bike, elliptical.
A bouldering wall would be fun! goo.gl/e8fYU
Edited by: CHERIMOOSE at: 1/27/2013 (11:17)