At that price range, if you can't get the 212+ from microcenter, I'd recommend the stock quad heatpipe cooler that ships with the higher-wattage chips. It's noisy, but it cools pretty well.
You will not find many comparable HSFs in the stated price range. In fact, most aftermarket HSFs in the stated price range will be worse than the stock AM3 HSF.
edit:
http://www.frostytech.com/articleview.cfm?articleid=2541&page=4
The one to look for is the AVC Z7U7414001 (stock AM2). Look at what it beats, according to Frostytech:
OCZ Vendetta (high)
Coolermaster Hyper 212 (not the plus)
Enzotech Ultra-X (high)
Noctua NH-U12
Noctua NH-U12P
Coolermaster Hyper TX3
Arctic Cooling Freezer 64 Pro
etc.
Of course, it makes 60 dBA worth of noise, so take that for what it's worth.