Thanks to all for the input!
Here is where I am heading based on input and additional research.
Main antenna- CM4228HD
I researched the DB8e, DB8 and the HDB8X.
1) I choose the CM4228HD because it seems that this antenna higher gain than the others up to about channel 35-37 UHF by a good margin. (3-5db). Most of my UHF channels are within this 14 and 40 range.
http://www.antennahacks.com/Comparis...228_vs_DB8.htm
http://antennahacks.com/Comparisons/..._CM4228Old.htm
http://antennahacks.com/Comparisons/..._vs_HD8800.htm
2) It also picks up some of the VHF (high) channels better than the others so I’m hoping it will be good enough to not have to use a separate VHF antenna. I have some high vhf channels to get. If I don’t have success with the CM4228HD in picking up these VHF channels, I will pick up this-
http://www.mcmelectronics.com/product/30-2476
http://www.antennahacks.com/Comparis...F_Shootout.htm
I intend on trying in my attic first to see what happens! (asphalt shingle roof)
Does this sound reasonable?