and so excited about it!
I've never had an eReader, and have a HUGE overgrown collection of books (which I hope to replace in e-form, cull, and not add to, in paper form.) I am a widow, retired, have 2 dogs (dachshund and Papillion) and 1 cat (of the cat variety.) Besides books and pets, I collect pewter figurines, angels, anything Eeyore, beads*, and containers (to put my collections in or on.)
*my sister and I plan to make jewelry and sell it, but so far, I've just been collecting and sorting beads (LOTS of beads.)
I will admit, I have not yet downloaded any books. I've been busy 'reading up'

on all the how to's, hints, and cautions.
I considered the Kindle 2 (being a long-time Amazon shopper) and the Sony 505. They seemed the most reasonable in cost. My nephew has the Sony, so I was able to hold that one, and liked it; but, I chose it mainly because of the ability to use SD cards. I am a bit obsessive compulsive about sorting things (pretty much anything

), and liked the idea of being able to have separate cards for my favorite author's collections, or genre.
I have a few beginner questions:
- What is the best format in ebooks to use with the Sony 505?
- What can't I use?
- Can I use .lit files?
- Are .txt files hard to read?
- I've seen comments about problems with .pdf format and the Sony. What's that all about?
- What is the deal with having to convert files for the Sony eReader?
- Where is/are the best sites for obtaining books (cheap)?
- What concerns should I have about 'free ebook' sites my nephew has told me about?
Thanks so much for your patience and help!