If it's outfitting your car with emergency equipment that you like then I've got just the thing for you.
www.tacticalresponsellc.com
I'm a technician for them when I'm back in CT. They do great work. The website is in need of updating, they still have whelen inventory along with other products, however they primarily deal with Code3 products now (they are the only official Code3 dealer in CT). They also have new demo cars, 2 crown vics in addition to the same Tahoe.
If you want to set your car up I highly recommend this shop. I have never heard of anyone who is displeased with their work.