New Camera

So I got a Nikon D40. I'm in love, I can't put the thing down... taking pictures of anything and everything. I'm even losing sleep over it! Haha. I went with the D40 because I like Nikon's and I already had a few lenses from my Fathers old film SLR that I could use on the new DSLR. Theres a few lenses I still would like to get... but all in due time. I first need to master the camera and the settings with the lenses I have. I have a 28mm wide angle, 35-70mm, 18-55mm, and a 75-200mm. I want a good macro lens... I'm thinking the 60mm or maybe the 105mm, then the 50mm looks pretty trusty and its only $110ish so that will most likely be my next lens for the collection. The 75-200mm is made by Sigma and its really cumbersome so I'm thinking about the 18-200mm with VR. Since I got the D40 I need lenses that have IF because theres no focusing motor on the body of the D40 but thats not too big of a deal as manual focusing is an art I think, also more interactive. Only three more days until the big holiday!