I started out MIG welding. I bought an Eastwood MIG 175, mainly because of the price and it came with a spool gun for AL, should I ever decide I want to MIG aluminum.
I would agree that TIG welding isn't something to start with. In my opinion, tig welding is more for precision/specialty applications, such as working on stainless steel machined parts, or smaller welding projects. Now that's not to say it can't be done, there are some guys out there who are killer with a TIG torch. But for your average joe, MIG is essitially point and shoot.
As far as 110 or 220v, I too would suggest you spend the extra cash and get a 220v machine. You may not always NEED the extra power, but that day when you do, you'll be glad you have it. The only downside with a 220v machine is that it is not as portable as 110v, as you can imagine. But a lot of the inverter based machines on the market these days have 220/110v capabilities with the simple addition of a pigtail adaptor on the end of the power plug.
If you do decide to go with a MIG machine, I would highly recommend that you also spend the extra money and buy a gas cylinder to go with it. Running flux-cored (gas-less) wire sucks. It is messy, spatters more and is a more labor intensive weld after the fact. Meaning you'll have to clean slag off of each and every weld when you're done.
When welding just plain mild steel, normally I run a C25 gas (75% argon, 25% CO2). That gas will get you by for MOST welding applications. If you were to also get a TIG machine, you'll need to buy another bottle of gas, 100% argon.
I can't remember how large my gas cylinders are, but I would suggest buying the largest ones your local welding supply will sell you. It just means you have to swap cylinders less often.
There is no substitute for 1 on 1 learning when it comes to welding, but you can learn A LOT by watching YouTube videos and reading various forums out there.
I really enjoy watching Welding Tips and Tricks on YouTube. And there is always an interesting thread on WeldingWeb.
In your searches, you'll probably come across domestic vs imported welders. Everyone's got there own opinion on it. Here's mine. If buying a cheaper Chinese welder will get you in the game, and get you started welding, that is what I would do. Miller and Lincoln both make great machines, and the odds are you will not have a problem with them, but that comes at a larger price tag. I know I couldn't afford one, but now that I know what I'm doing, I think I would feel more comfortable dropping the cash on a higher end machine. Just my opinion.
And when you're looking at prices of a machine, remember to mentally include the price of a gas cylinder, a spool of wire, helmet and gloves. That stuff adds up when you buy it all at once. Don't worry about a welding cart, build your own. Great beginner project.
That's probably the longest post I've written on this forum. But I enjoy welding and fabrication, just as much as I do Jeeps.
Hopefully something in this post helps you out.