I've got although I'm getting a 360 due to my parants acquiring in a house exchange (It came listed in the furniture and they don't need one). No More Heroes is a very original and fun game, it's similer to a sandbox/GTA game but it's more like an scrolling fighting game like Street Gangs or Golden Axe in many ways. Paper Mario and Zelda are the best of Nintendo's offerings, if you Zelda on Gamecube it's not much different on Wii though. I haven't played RE4 but a freind says that he enjoyed that more than any game he's played in ages and I believe the the Wii Remote features on that set it apat from other versions alot more and it has improved graphics too. There's other stuff I've not played that looks good as well, Fire Emblem, Metriod Prime, Okami, Resident Evil:Umbrella Chronicles (a light gun game, which looked very fun on a youtube video I watched last night) , Far Cry, Medal of Honor Wii, Chocobo's Dungeon (Easy to laugh at this but it's made by Chunsoft who specialize in rock solid dungeon crawling RPGs), Baroque, Excite Truck, Sin and Punishment, Lost Winds ,Tauma Center and Pro Evo 2008 has reviews saying it's the best version although the lack of Master League puts me off. I'd avoid SMG, total dissapointment compared to the last few Mario games and sticks with the decline of the series (SM3>SMW>M64>Sunshine>Galaxy). The remote itself is very responsive which was my main fear before getting a Wii and isn't overused most games although quite often when it is it feels awkward, unnessecery and as people have dubbed it "tacked on".
Overall i'm a little dissapointed with the difficulty level of first party (Nintendo) titles, a lack of support from third party companies except Capcom and a slow start to Nintendo's online service but these are easy to adderess issues and look to be being sorted out except the making Nintendo games harder. It'd be good time to get one despite there not being much out for Christmas as you could pick most the games I've mentione for cheap now and the 2009 games line up(
http://uk.gamespot.com/pages/forums/show_msgs.php?topic_id=26478407 looks a lot more diverse and interesting.
The virtual console is very nifty if you like old games aswell but would be irrelavent if you don't.