I don't know what NOVA is.
If you mean Fairfax, Va. I've heard Mortons BMW in Fredericksburg, Va. is a good dealer.
Morton's is indeed a great shop. There is also an independent in the area: [url]http://www.beemersuberalles.com/[/url]
Many folks in the local club (BMWBMW) have used and speak very highly of both shops.