When looting in this design (or any treasure-heavy adventure, for that matter), cast Detect Magic and take the magic items first, then gems and jewels. Don't bother with more than about 100 platinum pieces per character for spending money. When you get back to town, you can ID and then sell the magic items, gems and jewelry for all the cash you'll need.
Also, to use the number pad keys on your laptop, hold down the Fn key and use the 7, 8, 9, U, I, O, and J, K, L keys for each row of the number pad (at least that's how it works on my laptop).