I've been using a Velbon El Carmagne 630 + Giottos MH3 ballhead for the past several years, and it's been hadling everything up to my Speed Graphic with the monster Kodak Aero Ektar just fine.

OK, the SG/AE combo is pushing it a little, but anything lighter than that is no problemo. I can't see any MF system out-stressing it.

I probably paid a total of $380 for that combo and an additional $50 or so for several extra quick-mount shoes.