Lens window shopping

Well ive been having a little dilemma about buying my first lens, if i am to invest my money in a new lens, i want it to be right for me not what people just recommend from there own bias opinions.
After lending Steve's 35m f/1.8 prime a few times, i have grown to love how sharp and how georguos the DOF is on it. It has made me understand the how important the quality of glass in lenses are and how my 18-55m nikon lens that comes with most cameras are cheap, but does have its uses for the wide ange of it and all round purposes. Now the other choice i had was to go for a nice macro because of my love for macro bug shots. This would put that lens in my bag alot and not on my camera,  it would restrict me on having to change all the time and not having better glass for all the ordinary shots. Macro can be very seasonal as well, because of subject matter. But on the other hand it is my favourite type of photography...

   Now the choices ... I could ether go for the same lens as Steve and go for a raynox macro attatchment for macro work. The other choice would be the nikon micro 40mm. Now the raynox attachment is not known in shops so i cant go see the quality for myself . The reviews i have read seem very promising, and the only complaints are from people who have been rough with it, or unexperienced people who have not really tried macro photography and do not know how the depth of feild can be. This is the least expencive option and very tempting cos of my use of Steve's lens and how i have grown to love the quality.
  The nikon macro 40m can be used for both uses prime and macro, this is why this lens has come to my attention. This lens DOF isnt as much as the 35m but the diffrence is not enough to bother me that much. The fact i could do both types of photography with out changing anything on the camera is a good thing ( fussing over lens or attachment while following a bug is not ideal) but the unknown quality was an issue, so we went to a camera shop to try it with my camera. we found a dark little shop where they were happy to assist us in any queries we had about the lens. I had a play and took the pics back and had a look at the results. Now as a prime it was nice sharp  and nice portait quality as a macro even more impressed, in a dark and dingy shop it managed to take good shots letting plenty of light in so less grain hehehehe.... now this lens will not suit all, not many people know that there is two kind of ways to take macro shots. One is to stand back and take the shot precisely, carefully and calculated, the other way is to crawl on the floor and get up close to catch your little bug (takes a diffrent kind of perception of how to compose your shot) i like the crawling around and am used to it. i therefore think the 40mm macro lens is the baby for me, despite its extra cost.
Jennyxx