Richard Casto wrote:
I am having a hard time with this as the Lowes price seems to be much lower than what you see via other online welding supply houses (~$600 at Lowes and ~$700-800 elsewhere). Maybe Lowes is just ultra competative on their price. Maybe their package is leaving something out that I am not seeing.
There is something to be said for buying from a good welding supply store to get support from them. If you are looking for cheap DIY, I would recommend looking at Welding Supplies at IOC on e-bay. They are a brick and mortar that sells over the Internet and I have bought supplies (nice welding helmet - something you should consider investing in) from them - if I didn't run into the deal I did on the welder I got, I would have bought my welder from them (again, remember I am a kook who will do it himself until the bitter end) since they offer good prices and free shipping (something to think about if you are getting a transformer-based welder which can weigh quite a bit).
Buying from Lowes or Home Depot is probably going to net you less support, since most likely, no one there has a clue about welding, whereas, with a mail order firm, you have bought stuff from them, and at least you can get some phone support from a specialty company.
I read to think about this twice before buying mail order on the Miller buelletin board. I would also look into a less "consumer" model welder and look at something a notch or two higher (hint, hint, not from Home Depot/Lowes), so you are buying something with longevity that you won't have to replace unless you need more welding power (in which case <grin> you just buy another welder/different process welder). Like they say in the IT industry..."no one ever got fired for buying big blue (IBM)" - the same applies to welding - Miller (also "blue") is the king of the hill. They are also more expensive than some of the other brands. I didn't shop MIG but I'm sure that you can read through tech specs and see the difference between models and brands, that related to marketing or real.
I think that brand matters less than availibility of supplies/consumables/service...
If you do get a "good" quality MIG that has a steady feed mechanism, by changing the cable/feed tube for the wire spool/rollers/parts and appropriate gas, you can actually weld aluminum with it (from what I've read and what Lincoln says on their site) - aluminum is one of the more "painful" metals to weld that you would find in automotive applications - I haven't done so yet, but I'm about to find out in a few weeks.

Richard Casto wrote:
The welding books I have been reading talk about rent vs. buy and it seems it is better (as Ashraf mentioned) to buy if you are do this as a hobby (don't go through much gas). Anybody have recommendations on where to get gas and what the tank size optons are?
Like Anders said, you can probably pick the "litter" of the tanks if you tell them you are a hobbyist and it is not going to be stored outdoors to get the least icky one and I'll echo the 150cf tank. I think I've used 1/2 of my first tank and I've put in a good number of hours in the garage with the hood down.
--Ashraf