d.o.m. tubing

I have a few questions relating to tubing. 
What thickness would be good for suspension items, 4 link bars and front control arms? 
 
I've tried to find some in town and have yet to find any.  Actually I found some but not the size I was looking for.  They'd have to order what I need and if someone needs to order something I can try to find it for my self.
 
And last question.  Those of you out there that purchase tubing and have it shipped to you, What companies are you using?  I'd like to find someone cheap near S.C. so shipping won't be too high.
 
Thanks,
 

I have it delivered by a local place. Over $100 and it's free.   I mostly use .120 wall tube.

I'm using 1.25" Dom with 3/16" wall for my control arms, anything smaller than that and I would feel slightly uncomfortable.  Wall thickness really depends on how large an OD you plan on running as well.  One thing to consider as well is if you plan on using bungs for any of the tubing it is much easier to find weld in bungs for specific sizes of tube than others, just as a heads up

Thanks,  I plan on using bungs.  My place locally can get what I need.  I just think that I can get a better deal if I shop around.  That's why I was wondering if anyone purchase their tubing online.

i have ordered from www.discountsteel.com shipping isnt bad if you order 8' joints they can ship it UPS. anything longer than 8' will have to ship truck freight and i s really expensive.  

--------------------------------------------- Originally posted by crewcabondubs i have ordered from www.discountsteel.com shipping isnt bad if you order 8' joints they can ship it UPS. anything longer than 8' will have to ship truck freight and i s really expensive.   --------------------------------------------- this is a good site.things are alot cheaper here than where i buy it in my town.

Thanks, I'll check it out.