"old film lenses" are not cheap. you're not going to find great lenses at your local yard sale, either. pick up a dx body, the kit lens and the 55-200vr. if you're comfortable getting refurbished, pick up one of the refurb packages on cameta's ebay store. that should get you pretty much set. if you find that you need to do more low-light shooting, pick up the 35 1.8g
the bottom line is that DX is where you should go for cost effectiveness. FX is great for specific types of photography, (wide angle with high control over depth of field, very low light, etc) but not a good general purpose choice. keep in mind that, currently, the cheapest FX body is the d700, which goes for about 1800$ used, whereas the cheapest DX body is the d3000, which is 340$ refurbed with a kit lens. oh, and want a midrange zoom for that d700? the cheapest is the 24-120vr at 1k$ used, but most people just get the 24-70 (1600 used).