The crucial m4 60gb isn't quite fast enough imo,I own a corsair force Gt and its great,also own M4 128gb and that's good too,only read about the Samsung but if they are like there hdd's then its a good choice also,ill post some figures up later for my 60gb
You want an ssd that uses synchronous or toggle nand memory,poorer asynchronous slows down as drive fills up,that memory is on the cheaper corsair and ocz ssd's,toggle is on the Samsung