Faster...I think that is a JRC not JVC!
Columbia...the cheapest all-in-one color radar chartplotter will be the Garmin new GPS18 dome with their GPS3005C chartplotter. The display is small (5") but it is in color and the Blue Charts are excellent for your region. You should be able to get each for around $1000 bucks bu te GPS18 doesn't ship yet for a couple of months...I think it is worth the wait given the small size and good specs.
P.S. They have a special on the GPS3005 here at $769 right now. http://shop.sailnet.com/shopping_car...%20gps/sort/4a