Grargar: Well, taking a look at my GOG account, I found the following games to recommend (Some of them are Strategy games, so feel free to disregard them if you find the touchpad inadequate for Strategy games. Then again, you did play and complete Baldur's Gate 2, which is quite dependent on the mouse):
- Dark Reign
- Duke Nukem I+II
- Earthworm Jim 1+2
- KKND Xtreme
- KKND 2: Krossfire
- Oddworld: Abe's Oddysee
- Oddworld: Abe's Exoddus
- Rayman Forever
- Realms of Chaos
- Suprefrog
- Theme Hospital
- Tzar: The Burden of the Crown
- UnEpic
Outside of GOG.com, I would recommend Majesty Gold (Or not if you have problems with Strategy games)
Unepic ran slow for me on my netbook. Slow as in moving-through-molasses slow. It was playable but still....