Sorry to hear about your troubles.
I would recommend getting a nice cordless drill kit (Dewalt, Makita, Bosch, etc....). The more voltage the better. If you can verify the charger, drill, and battery are in working order than you are set. I would not worry about getting them new and stick to craigslist or pawnshops for these. OF course, new will offer a warranty so that is something to consider.They can be good sources of other tools as well. Also, I would not shy away from a corded drill either if you have (or are willing to get) a decent length extension cord. Corded drills exchange portability for power and are an asset to any tool collection. If you do choose a cordless drill try to stick to the same system for your other cordless tools. You could easily spend $1500 just on power tools, so try to only get the ones that you know he will use frequently. If your not sure I would consider a drill(corded or cordless), circular saw (corded or cordless), Working light (corded or cordless), vacuum (corded or cordless).
For handtools, I have had good success with these brands:
Klein
Vice-Grip/Knipex/Channel
Kobalt
Stanley
Craftsman
EZRed
Husky
I recommend the use of tooltopia.com. They offer free shipping on orders of over $100 and I have always had great success with them. Use the following for a general guide to get you pointed in the right direction:
Drill
Circular Saw
Flashlight
Stand light (halogen)
Screwdriver pack (about 10 or so different screwdrivers phillips and flat)
AC Voltage Detector
Work gloves
Safety glasses
Box of respirators
Drywall saw
Retractable utility knife
Hammer (with claw)
1 foot level
Assorted Vice-Grip package
A few different size Slip joint pliers
Linemans pliers
Needle nose pliers
Wire cutter/stripper
SAE and Metric wrench pack
SAE and Metric socket and ratchet kit (3/8" drive recommended)
Putty knife assortment
Tape Measure
PAck of carpenters pencils
Benzomatic starter kit + 1" copper pipe cutter if you have copper plumbing
PVC primer and glue if you have PVC plumbing
Basin Wrench
I would also save some money to figure out a way to put your husbands future tools under lock and key in a fixxed location (i.e. secured jobbox).
Hope this helps get you started.