Hi Craig,
My first DSLR was a D70 – you’ll love it.
I started out with a very cheap DIY rig pretty much identical to what is described in this Strobist post:
http://strobist.blogspot.com/2006/07/how-to-diy-10-macro-photo-studio.html
In the beginning I didn’t use a speedlight, just a desk lamp and daylight balanced (full spectrum) 26-watt flourescent bulb.
Standing light from a lamp works well as you learn, because the camera’s meter can read the scene and very few adjustments are usually required.
You do want to use a tripod because depending on background color and illumination your shutter speeds may be on the slow side.
This is going back to about 2009 but here is a typical result from this basic setup:
