Thanks chaps, really should post on here a bit more. I've a 97 Kona Kilauea waiting to be re-built, which could be an interesting project.
MN_Runner - Rigid fork is great. I was previously riding around on my Kilauea with a Project 2, so not too much of a shock to the system. The Pace fork is surprisingly forgiving and together with the Ti frame the ride is pretty comfortable. Not sure I fully trust carbon fibre yet, but so far so good.
haggis - I'll try and get a decent photo of the repaired weld. I'm struggling with my too-clever-for-its-own-good autofocus camera (should never have sold the DSLR) as it seems to dislike titanium! Here's a photo of the cracked weld before the repair - not the easiest to spot:
The repair is very tidy. Never going to be as good as the original, but unless you know what to look for you're unlikely to spot it. Will try and get a picture.
BobCatMax - I know, I know
. I would dearly love to get rid of it. With a bit of crimbo cash I may well go for a 1x9 setup instead.