Lightroom Presets - Which are most useful?

Hello all,

Any opinions on which Lightroom 4 presets available for purchase (or free!!) you have actually found to be useful?  I am looking for a few presets which produce "Vintage" or "Antique" looks that are actually attractive.  I tried a few "free download" presets but generally was disappointed with the results.  Any suggestions are appreciated!

CZAHAROP