Slot-2 cart that can run GBA roms?

Hello.Just wondering if anyone knows of a good slot-2 flashcart that is DS compatible (Hopefully one that fits exactly in place because I lost the dust guard.) that can run GBA roms. Also if you could link me to a site that sells and ships to the UK, that'd be great.

https://www.romulation.org/forum/index.php?topic=16641.0

http://www.dealextreme.com/details.dx/sku.1895orhttp://www.dealextreme.com/details.dx/sku.2967

EZFlash range.