You could easily pay more for a good lens than you would for the camera body...which really sucks because there's about 3 different lenses I still want to get and one of them is a good size down payment on a new car.
Digital P&S cameras like the Canon G series and the Nikon Coolpix series have a pretty decent macro function, Sony's not that bad either. I used my Sony a lot in macro mode for taking tank pictures before I got the DSLR. The zoom lens lets me do the same thing from a farther distance.
If you feel like experimenting with reverse lens imaging or just learning about macro photography in general check out
http://photography-on-the.net/forum/...splay.php?f=38 I think you might have to register to view the pictures.