You don't say what your budget is, but good, sturdy workbenches (like these) with plenty of outlets for power supplies, scopes, meters, etc. as well as built in drawers and cabinet space.
If you are looking for suggestions on equipment, power supplies like the Topward 6000D series or similar (multiple output, adjustable, current limiting supplies) are invaluable. Good o-scope, handheld multimeter, etc. if you don't already have that stuff.