... Forum member since 2011...
Is the "can't use a lot of weight" because there's still an injury that you're working around and prevents you from using heavier weights or because you're just nervous about using heavier weights?
Tons of workouts could fit the bill. This is one example of a full body routine (3 days lifting, 2-3 days simple cardio). A lot of guys in the Over-35 forum seem to like 5/3/1 variations because of ample recovery. Wendler talks about it here.
Also, and arguably more importantly, don't overlook nutrition. If you've got a gut and want to drop fat, addressing nutrition is crucial. The Paleo Hybrid is a basic template.