Becky,

I have had both a vaginal birth and 3 caesareans. Personally, I would take the vaginal birth. While a caesarean isn't so bad, in that the actual pain after the birth only lasts for a few days, the actual recovery, both physically and emotionally (for me) took longer.
Also keep in mind that while you feel good and outwardly appear to recover well from caesarean, the 6 week period of no driving, lifting etc, is there for a reason.

I once met a lady who had already had 1 c - section and who had not kept to her 6 week guidelines because she felt well. When she found herself pregnant she also found that she had so many adhesions from the previous section that her current pregnancy was full of strife. The doctor felt that it was due to her lifting etc following the surgery. Not sure if this is correct, so don't quote me on it but have always had that in the back of my mind, everytime I have needed caesarean.

I guess for me, that is the one factor, I think you should consider. If this is not your last pregnancy what will be the after effects of this caesarean? Once your uterus has been cut, that will place you in a different risk group, if you want to attempt VBAC that will put alot of conditions on your birth and if you push yourself, following the caesar (as many of us do when we have other children to look after) what will be the prolonged after effects?

I know that you have to make the decision that is right for you and I know that it is a hard one. Like many have said here, I encourage you to read and research and talk to as many people as you can, so that you can make an informed choice. Good luck and however you choose to birth your baby, I hope that it is everything you want it to be.