Regarding two you mentioned, the Walther P99 and a SigSauer P228 or 229. I own the P99 and P229. I'm guessing the grip on a Sig may be too thick for your girlfriend...maybe. I purchased a LEO trade-in Sig P229, 9mm for $500.00. The Walther P99 was NIB for $550.00 (probably lower than CA prices). It can be complicated (at first) to operate an AS model for a new shooter. However, the QA model is the same DAO trigger pull every time. Plus, the grip comes with three different grip attachments for a better feel/grip. Check your local gun shops for LEO trade-ins, it can save you money, and you'll know that gun is functional and reliable. Not many rounds down the pipe, except for qualification shooting. Just remember to choose the correct model handgun for you. If you don't, and you try to sell it afterwards, it's like a car driven off the showroom floor, you loose money quickly.