I like Omron brand--same kind my cardio uses, only in portable form. Records your heart rate, and has 2 separate memory settings so if you and your wife both use it, it will save your BP info up to 20 readings. Also keeps track of time and day.
I got mine at Costco a couple years ago right before my surgery so I could monitor myself at home post-op-- think it was about 20-30 bucks.
Debi (debster913)