LOL Ashley.
Well, you know, you have to ask sometimes.
Okay, I don't know much on settling here on the basis of work. I do know that you'll have to get a visa through your job. They pay for the visa. As far as how much you need to live here, it depends on how well you want to live.
I find that things are more expensive here. Housing is really high at the moment, it costs an arm and leg to have a car, and don't even get me started on the cost of clothes.
You'll want to have a little saved up to get you started on the right foot but if you're working, then you'll have money coming in, so you won't have to save up for the whole time. (although, you might not want to listen to me, I destroyed my credit a long time ago)
Keep in mind the exchange rate. It's currently $1.75 per pound.
As far as getting a lawyer, I know a lot of people who recommend it. From what I understand, it makes things a lot easier. We didn't use one but that's because we couldn't afford one. Look into one, see the prices. If you're moving here only for the hell of it, you'll most likely need one. If your job is in high demand (ie. doctors and such) you might have an easier time of it.
Just a small note: I'm not a lawyer or immigration officer or anything of the sort. So you should check on everything I said because it may be wrong.