WordPress is soo wow!

I should rather say “I am pressed for words is my review for WordPress” :-). The usability and user experience is amazing cool! I have decided to try wordpress as there was ability to add categories unlike blogger. I have a blogger account which I have been writing on mostly Web 2.0 and technology stuff. But lately, I relized I want write on lots of things! Currently I have 285 feeds on my RSS reader (bloglines) and my interests are diverse. And its also exciting to see that there is a way to host my blog on own my own Mac mini and the bloggin platform is open source. Amazingly cool 😀 How or why did I not try it for soo long? Beats me …
I still have doubts on how much storage I am given on this i.e wordpress.com. I blogger I assume  is unlimited. Is it the same over here even if I don’t host my site?