I'd go for something Aluminium rather than carbon fibre, its cheaper, generally more stable (because its heavier), and no so heavy carrying it is uncomfortable... I'd go for:
Giottos MTL 9351B Tripod (Legs, about £80 new)
Giottos MH1300-621 Series 2 Ball Head (about £79 new)
With a little shopping around for £9 off this falls in the high end of your budget. You could always go one model lower on the legs to knock about £12 off, but you don't get the crazy awesome center column!:
Those tripod legs are outstanding, the center column can be adjusted to stick out horizontally and the legs go really wide to get low for macro! Nice and solid all metal the build quality is nice!
The head is the best bit, really solid and a really nice quick release. Again the build quality is glorious!