Pilotwithnoplane,
A few thoughts to help.
1. The truth about place like Gulfstream is starting to come out. Just because people are going there and getting a handfull of SIC1900 time doesn't mean your gonna be lined up for a job right after your done. The dilema is you finish with some turbine 121 time but you're still below mins for most companies. In your case you have over 1000 hrs which is good, but you still paid for that time.
2. Are you Current? Most regionals look for a certain amount of time in the last 6 months. Expressjet is big on Actual IFR time. Its only gonna get harder and harder to find a job as your wings get more dust on them. Do something, teach, fly freight, something to keep you current.
3. Be careful who you use to walk your resume in. If the company has problems with that person it'll make it harder then if you were going in cold.
4. Pay attension to application policies. If you have applyied too many times to the same company you can get your self thrown out. Sometimes it just takes forever for them to get around to calling you. Be patient.
5. Resume/Cover letter. I know this sound obvious, but make sure its short- no longer then a page and hits the key points without wordyness of grammer/spelling errors. Its the only thing that will represent you on the front end and it HAS TO STAND OUT.
6. Skeletons in the closet? Not saying you do, but DUI's, Criminal History, violations, bad diving record will make it tuff.
7. Analyize the situation. You say these other low timeers are getting hired. So what are they doing that you're not. Are you supplying refs that are revelent- don't have to all be in aviation. Customer Service refs are just as good. Are you dotting the I's and crossing the T's. It sounds like you're missing something somewhere. It's not that hard to get called for a commuter interview these days.
Just remember- this is a dismal time for aviation, SCabs, unions, low wages are just the tip of the iceburg. Stay foucused and stay tuff.
Keep plugging-you'll find something.