Hey guys, I've been a weekend, texas rig worm, farm pond type of fisherman for the past couple years and haven't strayed too far from that method until this year. I've recently put a trolling motor on my canoe and have been heading to some of the small to medium size lakes in Kentucky. I've also been reading both of KVD's books and watching a lot of "The Bass Pros" DVDs to try and learn as much as I can. Through all of that, I'm coming to the conclusion that in order to really be successful, it may be a good idea to start looking at fishfinders. I'm not looking for anything too crazy (as I said, all I have right now is a canoe) but something that will help me know depth, temp, structure, etc. I like the Lowrance Elite4x and Elite4xDSI but should I get a combo deal with chartplotter/mapping software as well. I'm a little confused at how all that works. Also, would I be able to hook it up to the same battery as the trolling motor somehow or do I have to have two battery's. Any and all info would help! Thanks