HELP

-- I am a Mom who can't play games, but after various family and friends continually talk about the Wii I went & got it as a family gift from Santa.
Our background:
Our family of 5 who owns PS3 & GC. GC still gets a good amount of play.
DH loves Resident Evil
DSs share the gaming systems which are kept in their bedroom-- We have a wide array, including GH & Rock Band, the new Star Wars (PS3).
DD (7) & I are complete gaming novices & really stink.
What I bought so far:
Wii
WiiFit w/ balance Board
Carnival
WiiPlay
Steering Wheel (this was given to me by a co-worker NIB)
I know I need:
Charger
What do I need for a fun Christmas? I want this as a "fun exercise" so I am looking for "physical" games. I want to avoid games that the graphics are better on PS3 -- War games, Star Wars, etc.
Boom Blox and Shaun White have been recommended to me.
Any other really physical game recommendations?
Would we need more controllers?
DS 12 (soon to be 13) is NOT going to be excited about the Wii -- Is there anything that would really WOW him that isn't available or good on PS3?
And what can I do with that free steering wheel -- any cheap (under $50) games I can use it with?