I don't know what you really want me say. Don't worry about the database stuff, you're talking 100k+ hands when you have to worry about that.
All those [TOTALLY AWESOME] graphs I post in the LC thread are made using PG, it's REAL easy to use and it's fast.
It's good stuff.
And, like Chewly's Gum, you won't get cancer and it's cheaper than cigarettes.