I've got a beat-up old Dunlop bag. It looks awful and the stand is bent so it won't stand up properly! I'm looking to get a new bag too. I've got Mizuno irons so I'll probably get a Mizuno bag to match, though I'm seriously tempted by a Sun Mountain bag. They look really well made and the idea of having a waterproof golf bag is very appealing.
Oh yeah and for anyone thinking of getting lessons, make sure the pro you get lessons with uses a launch monitor. That way, they can see exact figures for angle of attack, club path, face angle, launch angle, spin rate, etc. If you're really looking to improve, it's the best way forward.