Thanks for all the post guys n gals!
As I said in my opening post, I am happy on my own! On occasion I meet a nice girl (as friends) and often think, 'wow, it would be great to have her as regular company' but invariably nothing comes of it. I think its because I am so used to being on my own that I don't have the body language of somebody who is available and/or looking (if that makes sense). I know one or two girls in the past were initially interested but because I didn't do cartwheels displaying my interest it fizzled out.
I am slightly immature for my age (34), I am a big kid and a cheeky chappie so I tend to go for younger women. Unfortunately I don't seem to attract the women I am interested in at all. Any woman that shows an interest, I am not interested in. That gets really depressing.
I think also, because the job situation hasn't been great for a few years the whole concept of mortgage, marriage and babies is a bit unrealistic for me. Even if I was secure financially I still feel far too young for all that and it scares the hell out of me.