I am new at lighting so I thought that I would teach myself at my parents house and do a good size lighting system there first. First off it is currently 490 total watts with another 20-40 to go making the 600w transformers a little underpowered. It is also around a pool with longest runs reaching 130' and all lamps are connected by #8 wire throughout. What I'm looking at is the MT-900T transformer from Vista and purchasing throuh JD Landscapes for approx $450. I want/need a MT transformer of 12,13,14,15 taps to power the system, obviously. What I'm looking for are other transformers just as good maybe a little cheaper or maybe some are better. Basically I'm looking for a good transformer to stack up against the Vista if there are better alternatives coming from some of you that have used a few.