Basically, make a circuit of 4-6 core exercises. You go through the circuit non stop, then rest once you finished. Do it 3 or 4 times. Heres an example:
Weighted V-ups, 12
Chinnies, burn out
Plank, 60 sec
Weighted Russian Twists, 20
Weighted Side Extensions, 10
Side Plank, 60 sec
----Repeat 3 to 4 times. Rest for one minute. No rest until you completed the last side plank.
how often do you guys work your abs...and does anyone have a great program that use that theyd be willing to post?
I do Abs twice a week for ~100 reps each time. I use most weighted (i.e. rope crunch, weighted crunch, etc.) and swissball (i.e. swissball double-leg raise, swissball crunch (270 to 180 degrees, feet on wall/knees at 90 degree flexion, etc.), etc.) exercises.
My favortive thing to do is sit down and pick two exercises per area of your core (upper and lower abs, obliques, and lower back) and I make a cycle routine cosisting of about 7 or 8 exercises and do them all for 25-40 reps circuit style. Do this four times and it will take about a half hour. I never use weight though because I don't use a belt when squatting or deadlifting so those strengthen my core enough. This is more to get that "what the fukc just happened to my stomach" feeling.