Hydronic heat incorporated into a built in cabinet??

Try Myson toe kick heaters. You might be suprised at their efficiency levels.
http://www.houseneeds.com/shop/myson/myson-toe-kick-convectors-main.asp

-- Methods are many,Principles are few.Methods change often,Principles never do.

The reason I suggest Myson heaters is that they have a variety of units that can help you even with a long run.

-- Methods are many,Principles are few.Methods change often,Principles never do.

Should I try and get the entire run filled with these or just get 2-3 and let them handle the heating?? There is another baseboard on the other side of the room, but the ones I need to incorporate heat the middle of the house.

If you look at the Myson heater article, they replace specific runs of base board heat. the 5000 unit replaces 10feet, the 7000 replaces 14 feet. With the other one across the room you should be just fine. Give them a call, they will help you chose the right model for your application.

-- Methods are many,Principles are few.Methods change often,Principles never do.

Thanks again for all your help.