Jimbojumbo-these are taken with my 18-55 kit lens plus a cheap screw-on close up filter (about 10 pounds from amazon). I hand held to get these (held my breath!) but a tripod would give a more steady result. I'm hoping to get a macro lens when I've saved up...! You can get pretty good results with very inexpensive equipment, but I think for the best shots (like Mark's-great shot by the way, Mark!) you'll need a macro lens. Others here have much more experience and there are loads of great tips, so look around

thanks for the comments guys, I was pleased with these shots!