BLUE SPARK: http://goo.gl/QxUl1B
Samson MTR231A: http://goo.gl/2eMPWZ
RØDE NT1A: http://goo.gl/pSwII8
Electro-Voice ND767A: http://goo.gl/CQw8Tx
These are samash.com's 4 bestselling condenser microphones under $300 - the Blue Microphones Spark, Samson MTR231A, RØDE NT1A, and Blue Microphones Bluebird