Smirf, one of two types of Radiohead fans. Um, I, being a sooperdooper Radiohead fan, will give you the lowdown (Nice copying my Pink Floyd thread title. I can tell you alreadly love me.):
The Bends: Killer release after the weak Pablo Honey and the super hit Creep. Ooh, it's got a studly array of songs. This is the only part of Radiohead's collection I have paid any money for.
OK Computer: The best album of the '90's, hands down. Listen to the whole thing several times. Hundreds of times.
Kid A: The freaky, deranged yet still absolutely gorgeous sister of OK Computer. It's like the parents were on an acid trip or something. Either way, Kid A is equally powerful, but so different. It blows my freakin' mind. Listen, ponder, freak out, repeat.
Airbag/How Am I Driving: The best EP ever. Palo Alto, Pearly*, and Polyethylene (Parts 1 & 2) are killer tracks. I love Radiohead. The middle of their career appears to be their peak.