The dsi XL is the ideal system for playing ds games on. The lite is far too small and the 3ds like you said, leaves games blurry. I'd also suggest picking up o

The dsi XL is the ideal system for playing ds games on. The lite is far too small and the 3ds like you said, leaves games blurry. I'd also suggest picking up one of those flashcarts on ebay for a few dollars so you can load roms on to it. Or installing twilight menu so you can do it off the sd card slot.