Upgrading to a D90 from D40x v. no clue what I should buy, sell, or keep My gf has been trying to finalize some vacation plans for the last ~2 months and the whole time I've been telling myself that I'm going to ditch my D40x and upgrade to a D90 before we go anywhere. The gf finally set a date and now I'm thinking about buying a D90 in the next day or two. . .we're leaving on the 27th of June, so I want to buy the camera soon so I can have a few weeks to play around with it So this is my situation. . . I don't have a grand to drop on a camera right now, so I'm buying it with interest free financing at Best Buy I know it probably sounds like a pretty bad idea, but I've made two $2,000 interest-free credit purchases there in the last 2 years and I paid them both off 6+ months before the end of the "interest-free" period. And if I want a new camera before the vacation, I don't have any choice but to get it from Best Buy I currently have the D40x w/ 18-55mm kit lens, which I plan on selling once I get the D90. Any idea of a fair asking price? It's in very good condition, and comes with all original packaging/paperwork. I also have a Tamrom 28-80mm f3.5-5.6 that I definitely want to sell, and a 70-300mm f4-5.6 that I'd possibly want to sell (depending on which camera package I get from Best Buy, and what you guys think) but I have no idea of their values or whether I should even sell the 70-300. My options on camera packages are: Basic D90 package with 18-105mm VR lens for ~$1235+tax or D90, 18-105mm VR, 55-200mm VR, and an extra battery for $1479+tax Now I need OTAP to advise me on what package to buy and whether or not I should keep the 70-300, and hopefully give me an idea on market value of my D40x and Tamron 28-80 Any input is greatly appreciated.