Sorry for the first-post drive-by but I'm desperately in need of some help. I've been tasked with collecting the equipment to do professional-grade product photography for my company. My photography experience is limited to 2 semesters of film-based classes in college. My only digital experience is with my personal point-n-click. I think I'm good on the lighting, backdrops, tents and lenses (though I'm open to suggestions there as well- especially on places to shop), but the area I'm most at a loss on is the camera. I have no idea what makes a digital SLR "professional" - MP count etc. The vast majority of the work will be on products in a studio setting, but there will be some field-work with moving personnel and vehicles. The images will be used on our website, catalogs, trade-show banners etc- basically everywhere a manufacturing company displays its wares. I know, from other forums I frequent, what a storm can be created when someone comes in and asks "What's the best xxxx?"- but I guess that's what I'm doing here. I need some recommendations on specific cameras that will meet our needs, provide bang-for-the-buck and that we're not likely to outgrow right away. Thank you.