Last edited by mimitabby; 01-04-2008 at 07:37 AM.
I've found that proper (amazing) fit has made more of a difference than frame weight, within reason of course. If your Surly fits you well, you can get lighter wheels for it and that would be a very economical way to go in the short run. That way, you could save up for a Luna or something. I got my Luna on sale. It was pre-built, and I happened to be out in New Mexico so I went to see it. Margo measured me up and it turned out that the bike was so close to what a custom frame would be for me, that I bought it. It's wonderful. It's not 16 lbs or anything (it's 18 without the pedals, but I need pedals and two waterbottles, a computer and a bell, so it probably about 22lbs now).
My advice would be to max out your fitness on the Surly (with lighter wheels) while you save for something really nice for later in the year or next year. If budget was not an issue, then I'd say go custom now.