4 30s anyday, the 125 is what 60$? na, get some cfls , keep the receit and if they break inside a year just go get free new ones, break the 125 and yes its 60$ more, keep it practical i say.
I agree with previous 2 posters. I would rather run 4 30w cfls than one 125w bulb. Just because you can space them apart for light distribution. I would also assume 30w clf bulbs are more readily available to purchase if one takes a shit.