I have a D60 (son of the D40X). With the exception of the D90, the Nikon models you quote are all quite old. IIRC the D40 was followed by the D40X (10 MP) was followed by the D60 was followed by the D3000 was followed (last autumn) by the current model the D3100 as the entry level DSLR.
I can't compare the Nikon with the Sony as I've not had my hands on a Sony. The Sony does appear to have been slated by the camera press for handling and image quality whereas the "gadget / general" press seem to love it. It looks to me like the approach was to develop a compact with a big sensor and exchangeable lens rather than to develop a DSLR without the prism / mirror if you see what I mean. 'scuse terminology which hasn't settled down yet. For reviews, see DPREVIEW, can't be beat. Barney on there used to write for Amateur Photographer. I believe the site is owned by Amazon.
I can only say that my Nikon is ace. I too use it with an 18-200 lens (Sigma), the supplied 18 - 55 has been little used. I have contemplated buying a 14 - 24 / 12 - 24 lens as most of my photography is landsacpe but I think I could be heading for a divorce if walks were held up even more while I faff about with changing lenses. Using it is easy. It is a very friendly, easy to use camera despite all of the knobs & buttons. In my opinion it tends to overexpose so I either use exposure compensation or manual exposure, both of which are dead easy to use.
As the D3000 is recently superseded you might even find a new one one within budget.
Good luck!
John
Last edited by: Tooslow on Sat 22 Jan 11 at 15:08
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