Amazon has a San Disk 16GB MicroSDHC for < $30... but....

[ac0x]

But it's only a Class 2... AHHHHHHHH. My 8 GB Class 4 is near full, so I probably need to do something soon. But I'm wondering how much of a difference I'll notice between my current Class 4 and a Class 2. Maybe I should just spend the extra $30 for an A-Data Class 6 or $40 extra Transcend. I know they're not Kingston/San Disk, but they seem to be getting good reviews there...