600w HPS!!

ive decided to get a 600w for my setup. Theres just so many out there i dont know what one to get? what ones have you guys had luck with? Im looking for a complete setup. ballast, bulb, reflector, ext. if you can. post a link to ones you recommend. thanks RIU

I had great luck with these. I have four of them.
http://www.ebay.com/itm/230644580415?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

I bought this one and have been very happy with it

http://www.virtualsunhydroponics.com/Agricultural/nav/grow-lights/winged_600W.asp