One of the points & miles bloggers (Milenomics) posted a Google Doc form/spreadsheet which can be used for tracking.

I've used Quicken for 15+ years to track everything, but I find it helpful to keep a secondary record with Excel for various things. That spreadsheet posted by MasterCharge is pretty slick.

Speaking of which, when you record, say, a purchase of VGC which are later unloaded via BB, are you recording both as a positive number (so that $5K worth of VGC and the same $5K unloaded records as $10K total), or are you recording one positive and one negative, so the net is $0?