Not only do I support it, I hope it is ratified through the Parliamentary mechanism after extensive debate and line by line scrutiny, which is in accordance with the UK parliamentary tradition that the Tories are trying to overthrow.
I must say that in this regard I disagree with the handfull of euro-sceptic Labour MP's wanting a referendum. There should only be a referendum when we are choosing to go into something like the euro, or creating radically new arrangements or institutions (e.g. devolved Parliaments) or where the governing party is hopelessly divided like Wilson's Labour government in the early 1970's.
Although there's a lot of bluster from the Tories I think they are making a big mistake putting so much effort into being anti-European and think they'll suffer from it in the longer run.
And an excellent article on why we should support the Reform Treaty from some time back in the Guardian.