Hi Gerry,
Close-up lenses for digital cameras are readily available. Of cours, you do need a digital camera that can take accessories like filters or so. My Canon G5 does, and (cheap) close-up lenses are available. I happen to have one, still unused - soon, soon

.
I think many Sonys take these type of accessories as well, as do Nikons, I don't really know about other cameras.
HTH,
Kind regards,
Wim