Any question answered...

... and other responses above....

So, if I did decide to go with some matched levers, what can I get which are not STi levers. All the ones they have listed are STI, and I have already installed downtube shifters, so I am only looking for brake levers. What has got the same pull?

Non-Shimano would be fine.

There aren't any made to match, I'm afraid. It's only the newer Shimano groupsets using that design and of the non-STI levers they make (R400 / R600), neither has the matching pull. I wouldn't be surprised to see them make some at some point for the touring market (who like bar end shifters), but then they may just continue the 'old' R450/R650 deep drop callipers alongside the 'new' R451/R651 (I haven't seen the R651 yet, but I think they exist).

I think you'd have to change brakes if you wanted to be sure it would all match - which ones have you ordered? You could just try them and see how you get on, although I appreciate it could end up costing a bit to swap them off for a different set if they're too grabby.