Join Date: Jul 2001
Location: Sunny San Diego
It really depends on your goals, and how your workout is structured. For example, I work each bodypart hard and heavy once a week, split between four different workouts. I'm generally sore somewhere everyday, but not the bodyparts I'm working out that day, because they've had a full week to rest and repair.
Other people prefer more of a cardio based full-body routine where they do an exercise or two for every bodypart in a single workout, and for that type of routine I'd suggest at least a day of rest in between each session in the gym, probably two ot even three days until your stamina improves.
The direct answer to your question is that there is nothing "dangerous" about working out with DOMS (delayed onset muscle soreness), though it will definintely affect performance. Being new to the gym though, be careful not to push it when experiencing bad pain, such as what can occur in the ligaments and tendons as they get used to the new stresses associated with weight training, or of course if you pull a muscle.
Raven 2006 Yamaha R6S
"If it has horsepower or tits you're gonna have trouble with it eventually..."