I have 1 remaining F25 kit. I find it to be a perfect size for a nice 1W laser. It has a copper heatsink. It runs on a single 14500 battery so you would need to install a small boost driver such as the flex-drive or micro-boost. Price is $50 shipped.
Not to take away business from our friends here at LPF, but Cajun Lasers DOES have it cheaper....
In any case, if you want something REALLY stylish, definitely get it here on LPF. I personally like the Sirius 1-C (although I've never bought it, only drooled at the pics)