I am getting my DD5 1/2 a DS lite for Christmas. My DS will turn four on Christmas day. I am afraid that after seeing his sister with one that he will want one as well. He already has a Wii and has no problem with it. Any suggestions?

I just picked up the DS Lite package at Walmart.com a few weeks back for DD4 as her big gift this year from Santa. I think my DD7 will be just as excited that she won't have to wrestle her for her DS anymore