what about Mercury Vapor?

[Walmart]

Ok I hear a lot about using hps and MH lamps for indoor gardening, but what about Mercury Vapor?

I found a 125W MV lamp at Wal-Mart for 35 dollars. I think it puts out about 6000 lumens (I may be off on that)
Also ron do you think that 125w MV lamp, a 100W MH lamp, 2 60W grow lamps, and 135W fluorescent tube is enough for 10 plants?

400W HPS lights are so expensive so I tried to go a cheaper route buy using alot more lights.
thanks