The real question is what you want to do. You are missing a few things that I couldn't live without.
-Cordless drill
-Drill bits
-Bit tip holder
-Bit tips
-Utility knife, fixed blade
-Carpenter's pencil
-Sharpie
-Squares (one small, one @24")
-Nut driver set
-3/8" socket set with extensions
-Torpedo level
-Chalk line with hang on bubble level
-Multimeter
-Wire strippers
-Aviation snips
-Bigger hammer (12" is only good for very small finish nails)
-Prybars (both a standard heavy duty and a low profile light bar for trim)
-Putty knives (1"SS, 3"SS, 6"SS with hammer handle, 10" blue steel, 12" blue steel)
-Mud Pan
-Drywall T-square
-Paint brushes
-Paint roller frame
-Roller covers
-Roller pan
-Various paint pails
-Extension ladder
-A-frame ladder
-Reciprocating saw
-Circular saw
-Hacksaw
-Tubing cutter
-Sand paper
-Flux
-Flux brushes
-Solder
-MAPP gas torch
-All purpose solvent weld cement
-PVC cleaner
-Flashlight
-Pipe wrench
-TOOL BELT!!!
These are the bare necessities to get things started. It seems like a lot of stuff, but it really isn't. I've left off a lot of specialized stuff that you will have to buy as you go along (like tub wrenches, seat wrenches, stud finders, crimping tools, threading equipment, and on and on and on).