Thanks for the comments, guys !!!
Getting started on the weathering now. I completed the canopy and the tail fin first so I can place them on to get an overall feel for it as i weather the main body.
http://www.hanshortes.com/dbhsmodeler/Diary/ConceptRaider-109.JPG
http://www.hanshortes.com/dbhsmodeler/Diary/ConceptRaider-110.JPG
Here's the center grille getting started. I want it to look like there is exhaust coming out of the grille so I added some trailing smoke stains behind the openings
http://www.hanshortes.com/dbhsmodeler/Diary/ConceptRaider-111.JPG
http://www.hanshortes.com/dbhsmodeler/Diary/ConceptRaider-112.JPG
I used pastels here to "paint" this area in a slightly darker tone. Just easier than masking and painting such a small area
http://www.hanshortes.com/dbhsmodeler/Diary/ConceptRaider-113.JPG
For now keeping it very light and will build up in passes until I think it's done. There's some shading here that's a liitle too light in this photo around the cockpit and some dust trails on the raised grey panels and the ring of openings.
http://www.hanshortes.com/dbhsmodeler/Diary/ConceptRaider-114.JPG