Choosing an eBook

Note: For the next few posts, I will be discussing my choice of eBook, what I think of the device, the software, and finish off with a few tips for users.
 
For a while, I’ve been wanting to buy an eBook. The reason is simple enough; I spend a lot of time and money on books, but I’m not too keen on carrying them all around with me.
 
When the Kindle became available, I looked into getting it, but as I do not live in the United States, I can’t readily buy one. Also, I think it looks like it is too heavily tied into Amazon’s specific DRM system for my liking.
 
I looked around the web, reading a lot of reviews and commentaries, and at last found that what seemed to be the perfect choice for me would be Sony Reader (PRS-505). The reason was that it handles a lot of formats (PDF, TXT, RTF, DOC, LRF, LRX, ePub, JPG, GIF, PNG, BMP, MP3, AAC w/o DRM), it connects to computers via USB, and it has two expansion slots (SD and Memory Stick).