Hi, can anyone give me some guidance about Manfrotto tripods. I would really like the 055XB or XPROB however the bank balance won't run to that for quite some time. I have been looking at the 190X instead but am unsure whether this is beefy enough for the weight of my camera equipment. The longest lense I have at the moment is 70-200mm but will eventually go up to 300mm, this is coupled with a Canon 400D. Is this too heavy for this tripod? At present I have a cheap and cheerful tripod which can't cope and won't lock off so is next to useless, I therefore need to get something very soon as its restricting my photography greatly. Thanks for any views / experiences with similar kit.