Asteroid Tracker Widget FTW.
Here's a nice site if you want to find stuff by date, closest estimated approach, etc.
There's a doosy in 2011 that looks to pass potentially less than 1 LD (Lunar Distance) away. Large Magnitude, very "slow" velocity compared to others those (about 1km/s). It's called 2009 BD, which I guess means it was discovered this year.