Hi guys. This is my first post on this board but I have been lurking for several months. I am a lowly DIYer that wants to install landscape lighting on my own home. I am doing it myself rather than hire a professional just because I like learning new things. I also like the feeling of accomplishment that I get after I have completed a quality job. OK, now that I have told the world how little I don't know I can move on to my questions. 1) I bought a Ryco 600 watt multi-tap transformer. Can I use more that one of the taps on the same side of the transformer as long as I don't load up that side to more than 80% of its rated capicity? 2) My transformer will be mounted to the side of my house. One side of the transformer will feed the front yard the other will feed the back. Each of the home runs will need to be about 110 feet and will use 10/2 wire. The average secondary run will be about 25 feet (I had planned on using 12/2 for the secondary runs), generating a total average wire run of about 135 feet. I had planned on putting around 200 watts on each side of the transformer, with all of the lights being on the last 25 feet of the wire run. My question is, how do I determine the total amp load on my wire (is there a chart somewhere that I can see this info), and can I place 10 or so lower wattage fixtures (10 - 20 watts each) on each of the home run lines I had planned on running (I don't really want to invest in another 250 of 10/2 for the home runs if I din't have to. Thanks for any any info that you can offer.