I would have said matte without question a year ago, but my MB and 24" iMac have made me see that the richness of color on the glossy is excellent, as opposed to my MBP (matte) and Dell (matte) displays.
That said, a lot of the pros here still say matte is better for them. As an art photographer, then, you're probably well advised to go for matte.
That said, the laptop screens aren't exactly going to be spot-on for color fidelity anyway, so I suggest you go look for yourself. People harp on glare as an issue for glossy screens. I've never noticed it at all.