Jet stream makes pretty good equipment. I have a couple of their antennas and the work great.They have good gain and have worked very well for at least 10 years. Our group put one up at the local Red Cross. Still in use.

For power supplies IMO this is the best one for the price on the market. It also has built in protection on the output that will help keep spikes out of your radio. I have one and we got two for our group. Several other guys in the group have them as well. I don't know of one that has failed yet.

http://www.cheapham.com/alinco-dm-330mvt/