I did lift two times a week for football last winter, but have not really lifted since. I used to weight a little less then 260 and now weigh 182 and am 6'2". I lost a substantial amount of muscle in the process though and do not really have a very low body fat percentage (online calculators estimate around 14%, but I really don't know how accurate that is). I'd like to my body fat percentage down too, but not until I put on a bit of muscle mass.
I have decided I would start with Rippetoe's beginner routine to get myself back into lifting. Here is the routine, the workouts are supposed to be alternated every other day, and to be performed three times a week. I am doing it Monday, Wedsneday, and Friday.
3x5 Bench Press
3x5 Standing Military Press
3x5 Pendlay Rows
I think it is a good starting routine and will get me ready for bigger and better things. I hope to make good strength gains and bulk up a bit too.