I agree with the others; WordPress is the way to go. Although MT is an excellent blogging tool, I found WordPress to be functionally superior in many ways. However, one of those ways is not ease of use in uploading photos. MT works better for that, though it is not too painful with WP.
Being an open source developer and supporter, one big advantage for me of WP over MT is the license. WP is licensed under the GPL. MT has a much more restrictive proprietary license. For my purposes in this particular situation, the GPL is a preferable license. However, if I were looking to create a public blog for my company, I would be much more willing to accept a proprietary license if I thought that I would get much better customer support in return.
Also, WP is not only free as in speech, but also free as in beer. If you are like me and setting up a small personal blog and a blog for a non-profit, price matters. While I was previously willing to donate $45 to SixApart for MT, the new pricing structure takes the cost beyond the added value over the free WP (which is already arguably superior, even if both were free).
I’m not sure if this is related to using Perl vs. PHP for web applications, or if it is just related to the design and quality of code for these two apps, but WordPress is much snappier than MT, especially for authors. Rebuilding a large blog in MT can be a torturous experience.
If you decide to go with WordPress, you might want to check out the install instructions I created specifically for installing WordPress on a DreamHost shared server. If you also want to evaluate Movable Type, I also have install instructions for MT. Finally, I posted some additional info about the MT license change and a very brief comparison of WordPress, Blosxom, and PyBlosxom on my blog.