i'm no expert, but here's a tip.

dont look through other friend's/acquaintances' nicer cameras and nicer lenses. you'll realize your kit lens and your camera arent as good in comparison to the more expensive stuff out there.

while what i just said can be totally wrong, i looked through a nikon d200 with a 18-200 VR this past weekend and i'm suddenly in the market to buy another damn lens. well not really, but i can fantasize (sp) cant i?