The gut
 

Ok, so this gut is becoming a thorn in my side. I started out the summer weighing 200 (I'm 5'10") and I'm down to about 179 through cycling and dieting. I feel 10x better, more energetic and relish cycling like never before. I'd like to lose another 15, but mainly so that I can increase my cycling performance up hills.

The gut still remains though. It's smaller than before, but there is still a gut. Everyone has their own $.02 on this one, some say only aerobic exercise can get rid of it, and some say sit-ups. I thought sit ups would develop the muscle underneath it, but not burn the fat.... I don't know anymore.

Has anyone successfully eliminated a gut completely? I hate this thing, but it seems to be pretty tough to get rid of...

Sounds like you've done a great job so far. Keep it up. That's the ONLY thing that'll get rid of the gut. Some people hang on to it in different places. Abdomen, hips, thighs and glutes being the most common places. I don't know about your body frame, but I think your ideal weight may still be a bit below your current. That is why you still hang on to the gut. Sit ups will NOT get rid of the flab, only strengthen the muscles.

ChipR

keep up the cycling check your diet and add some cross training. Mix in another activity 1 or 2X per week like inline skating, or some running or cardio machines maybe a little weight training

What should I target for a weight? I have pretty small bone structure and, as mentioned I'm 5'10-5'11....

I don't target a weight per se what I'm more
interested in is Body Fat Index (BFI?), or percentage
body fat. I try to keep it below 20% but optimally I should
be down in low teens. I think this gives a much better
measure of success than weight, especially if you're just
starting to ride (or any excersize) and pack on muscle
mass.
There are scales that measure BFI but they are not
the most percise things going, but it does give you an
idea of progress.
Marty

ideal weight for a given height is BS IMO. Marty is right, you are better of using your body fat % as a fitness guideline. What you maintain though depends on your gender, age, etc. If you are interested, do a search around the internet. There are many resources I have found in the past to learn about this stuff.