1) Total number of books I've owned?
Like Kangal, I'd say thousands. Uncountable.
2) The last book I bought?
"Google Hacking" by Johnny Long. He was at Shmoocon, and I really wanted to be at his talk, but then I busted my foot, see...
3) The last book I read?
I guess this means finished reading. It was a collection of short stories called "Alien Pets" that I picked up from some used book dealer at Balticon 2 years ago.
4) Five books that mean a lot to me:
Only five? Here's a random sampling:
Alice in Wonderland - Lewis Carroll
The Secret Garden - Francis Burnett
The Way of the Peaceful Warrior - Dan Millman
Perl in a Nutshell - O'Reilly Associates
Hitchhiker's Guide to the Galaxy - Douglas Adams
5) Okay! Tag! You're "it" now! (Tag five people and have them fill this out in their LJs.)