How do I give you that + point you deserve?
click on the thankyou button on the top right of the post
In case you didn't know, GIVING thanks improves your ranking too!
I'll add a couple of comments here too... even though I read with a Kindle (which used Mobi format) I prefer to get my books in ePub format because it seems to be the best file to convert FROM. I purchase books from Amazon for my Kindle and convert to ePub, but any other file I prefer ePub first.
I use Calibre to organize my entire eBook library. It's a great program, and only asks for donations by users that like the program. Besides converting eBook files to any other type, I prefer it because I can view and sort titles, change titles (for example, I always add Series info to the title so I can find it easier on my ereader), and review summaries of books before I read them. I also keep info in Calibre on books I've already read so I don't read them again!