I have a OCZ 64gb core drive. I don't have any 'stuttering' problems. However, random writes will hose any SSD.
Writing 1 bit means the SSD internally writes a 128kbyte sector. That takes time. I have done some optimizations
under windows and linux to minimize small, random writes. The OCZ forum lists a bunch for windows. For linux, I
mounted my partitions noatime, which eliminates updating file access times on file reads. I did get a screaming deal
on my SSD. This isn't a bad price for the 120gb drive, and it is faster than the one I have.