I'm not a Manfrotto fan but those legs get fairly decent reviews on Amazon.
It's always difficult to answer the question "what tripod should I get" without more information. Specifically, the following questions should be asked:
1) What is the total weight of your camera and heaviest lens you hope to support? Will this tripod EASILY support them? You don't want to start off pushing it's capacity limits.
2) What is the maximum height you need (i.e. how tall are you at eye-level)? 'Nuff said.
3) How do you plan to use it? For example, will you be carrying it a lot (i.e. hiking or traveling) or is it primarily intended for a fixed location (such as a studio)? For studio work you can use just about anything as long as it's stable. If you plan to carry it around town you may be better off with carbon fiber legs. They are usually lighter and easier to carry. Also, if it is to be stored in a suitcase then you probably want it to collapse down to 22" or less.
IMHO a good tripod is the number one most important accessory you can buy. Getting it right the first time can save you a bundle in the long-run. Wrong choices just sit in the closet.