I have got a Manfrotto 728B, this is a very much unheard of tripod which has a fixed head (I believe the heads fixed I haven't tried to remove it) the tripod is very good and although I don't believe it to be quite as solid as the 190 it... heres the really good bit, it is a lot lighter I don't have the figures but it is also a lot cheaper if shop around on the internet last time I looked it was available well under £90, this is well worth a look and I would highly recommend it especially if like me you get your wife to drag your tripod everywhere with you when walking etc.
Moral get a light tripod. (Or a good wife
)