Well I had another go at macros - this time I tried focus-stacking. What is that I hear you cry?! Focus stacking is simply a technique to get greater depth of field in a shot.
When you take macros you have to get very close to your subject (thanks for stating the obvious Barbara), and we all know that the closer your lens is to anything the shallower your depth of field, right? So what you do is put your camera on a tripod, no ifs or buts, you have to do this so that it remains in exactly the same place throughout. Then you shoot away, manually refocussing for each shot so that different parts of the subject are sharply in focus. I think I took four shots for each of the above but you can take more of course.
Next you have to combine the shots - you can do this easily in software such as Photoshop or CS4, I think there's also some free software available if you Google it. As I only have Elements I layered one shot at a time on another and erased the out of focus parts, then added another shot and continued adding and erasing until I was happy with the result.
Here are the images I combined for the flower shot.