PapalRage,
It all depends on your comfort level. I'd usually take shot when I had 30 buy-ins for my current level. but for $100NL I think I waited until I had $1700 before I started taking shots. this was because I figured $100NL would be a little tougher, so I wanted 25 buy-ins instead of 20, so I waited a little longer on shot taking. I'll probably do the same with $200NL. I want 30 buy-ins to move up there, so I probably won't take shot until I have around $4500.