Welcome to the forums, Irishk8lin. Good choice on gettin' a Wii, Kinect's certainly no replacement for it.
Speaking of Kirby, the newest Kirby game for the Wii (the previous one being Kirby's Epic Yarn) Kirby's Return to Dreamland should get released October 24th, so keep your eyes open for that. I myself might be getting it. =)
As for Mario, the Wii's got countless great games with our favorite Italian plumber. Mario Kart Wii, Super Mario Galaxy 1 & 2, New Super Mario Bros. Wii, the list keeps going on and on.