Thanks for the answers.

The DSTWO PLUS isn't necessary for me, as I said I don't plan on running 3DS ROMs, and Nintendo will probably target the card. Apparently the regular DSTWO works just fine, so that one's still interesting.

From what I read in the meantime it seems the r4i Gold 3DS with the Wood firmware is the best combo. And it isn't expensive either.

Thanks, will try to find a good European reseller for one of those.