QUOTE(determined76 @ Jun 24 2007, 09:33 PM)

Yep, new to running. Before I joined Pfit this year, I was training on my own. I set very unrealistic goals, and trained myself right into burnout and injury. Then I moderated alot, and have run pain-free since. I am enjoying running alot, and hope to come back to Pfit next year in a little better position than I was in when I started this year!
There are two fundamentally different approaches to developing speed at marathon distance.
1. Develop speed at shorter distance (e.g., 10K), then increase length of runs
2. Build base of long distance running, then develop speed.
To me, #1 makes a lot more sense, intuitively, because it takes less time to develop speed over short distances; however, I don't know anyone who has done this method with marathoning in mind. I know that #2 works because many people including myself have done it successfully, but I think it takes longer.
To truly build base mileage such that you will fully develop your running speed takes a year or more. Doing occasional speedwork along the way keeps you sharp, but putting in those miles is like putting money in the bank, even if you're not getting faster. Once you peak out your mileage, you will start seeing some speed increases.
As for coaching, as AC Tony notes Bob Williams is the best-known local coach. If you go to the track at Duniway Park Tuesday evenings at 6pm and ask around, you'll find him there. Keep in mind that you'll probably spend as much on a coach in a month or two as you do for an entire season of Portland Fit.
Based on a cursory read of your posts, though, I would strongly encourage you to read up on marathon training. The truth is that it isn't rocket science, and a diligent person can certainly improve on his or her own without professional coaching. Books such as "Advanced Marathoning" by Pete Pfitzinger and Scott Douglas and books by Dr. Jack Daniels will give you a very thorough background in marathoning. Until one gets a good understanding of the concepts, it can be difficult to submit to a rigorous training program.
As noted by John, I'd recommend focusing on finishing one marathon and learning from the experience. If you go around the finish line area of the Portland Marathon and ask people what they would do different in training for their next marathon, I guarantee you that the most common answer is that they would do more long runs. It's funny how intuitive that seems once you've run your first 26.2-mile race.
The CSS program that's part of Portland Fit is intended for folks with marathon experience, and from my comments above perhaps you can see why it's not intended for novices. Please don't hesitate to ask for any advice from folks on the board here or (better yet) from your color group coaching team.
Finally, the biggest thing you can do to achieve your goal is to train year round. Running in Portland in the winter isn't too bad the vast majority of the time as long as you have the right gear. There is a tremendous cumulative effect to training for marathons, so don't backslide in the off-season and you'll be way ahead come 2008.