you could have a look at Cybook Opus (bookeen.com) it is a great little basic reader. It is worth saving money for. I tried to estimate shipping cost to Bulgaria but they want postal code and I couldn't really provide it (tried a random one but then estimate is not good) Pity you don't have pixmania website in Bulgaria. One good thing to remember is that within European Union you won't pay taxes if you order from another EU country. Try Amazon.co.uk sometimes they have free shipping. Good luck and welcome to MR!
Edit:
http://www.amazon.co.uk/Bookeen-Cybo...883764&sr=8-38
they have it at amazon.co.uk as well as other ereaders. I cannot check for shipping to Bulgaria. Price is in £ 109 = 124 €. What I think though this is an older firmware version which needs update from bookeen site.