Do the speakers actually have to go onto a bookshelf? If so, you need to consider positioning and such, and there are relatively few small speakers that will sound good on an actual bookshelf.
If, on the other hand, what you're looking for is small speakers, then you have opened your possibilities substantially.
For small rooms, I like the Totem Arro's. Not quite bookshelf speakers, but they are small and image like nobody's business. The best budget pairing I've heard with it is the Jolida 302b. Add a strong budget CD player such as one of the Oppo's or a Music Hall CD-25 or Rotel and you're in business.
Michael
If, on the other hand, what you're looking for is small speakers, then you have opened your possibilities substantially.
For small rooms, I like the Totem Arro's. Not quite bookshelf speakers, but they are small and image like nobody's business. The best budget pairing I've heard with it is the Jolida 302b. Add a strong budget CD player such as one of the Oppo's or a Music Hall CD-25 or Rotel and you're in business.
Michael