Simple stable cart required

Hi, i need some advice on choosing a flash cart for use in a DS Lite for my 4yr old. We have not yet bought the DS Lite, but i want to download ROMs to play on it.
I have done a bit of research, but having never used any cart or even a DS i feel i need more help than just reading reviews etc.

Basically the cart needs to be simple to operate (not many steps/options to choose once loaded), preferably cheap, fast non-laggy interface, and not easily broken by a 4yr old taking it in and out of the NDSL.

I gather the best carts around are the CycloDS (expensive) and the SDOne (not simple/user-friendly).
I have considered the TTDS as it's cheap but the lack of ROM file sorting kind of turned me off.

The cart really only needs to be able to play games and thats it.

Can anyone suggest which i cart i should go for, or suggest another?

THANKS!

Hi,

You can choose our R4 SDHC. We highly recommend it for you since the interface of it is simple and the speed of it is fast. Also, the build quality of this card is great and robust that it is not easily to be damaged. It is the best card recommended to you with its great price.

BTW, at this moment, if you want to play the download games, you should buy the DS Lite not DSi since no one know that it is still able to use the Flash Carts with DSi or not. :)