The problem with reraising is its a blind war. Not a lot of respect there so its hard to take it down on the flop with a CB (which is where the real value is IMHO).
I'm like Xaston in I'm folding or raising the SB. I'm probably more 80% fold though.
Also, if you are playing low stakes NL, blind wars are generally not worth it. Considering how much you typically win in a big pot, and the fact that people are loose anyway, it's better just to play conservative.
In fact, most of my blind play is a disguise. I often WANT to be caught stealing a small pot, etc. so I'll get more action on my big hands.