[krunchyfrogg]

I have my reasons for combining the two roles into one character:

I'm really not impressed with either type of character!

Single-classed Mages will have their higher level spell slots open because I can't find scrolls fast enough in this game. Thieves just stink IMO. I don't scout, I don't backstab. Once I gain Evasion, I've got all the skills I'll ever need, and consider it a waste when I gain another level in the Thief class.

Writing that paragraph makes me realize that I think the dual-class option is probably best for me. I would still be able to get to a very high level as a Mage, and I would max out hit points from the 1d6 Thief hit die. Heck, I could probably dualclass a few levels earlier (whenever Evasion is gained) and still be good enough at thieving.

I made it through Throne of Bhaal with Imoen as my only Thief, and it's a waste putting more levels into Thief than I need to.