clean eating.. and i mean strict clean diet.. is the majority of the fight, that and a good excercise routine. you eat like 5-6 times a day but very small portions. the key is to eat till you are not hungry anymore, not till you are full in order to get the abs showing. no amount of excercise will show the abs... its about diet.

2 links for you:
www.crossfit.com and www.p90x.com

both are not about fancy gimmicks. just simple excercises that work. mainly compound body movements. not alot of equipment is needed at all.

i'm on p90x now. complete 90 day bootcamp that tells you exactly what excercises to do each day. just follow the calendar on which video to play each day and you'll have massive results. with p90x, you just need a pullup bar and some dumb bells. mainly using your own weight.