I haven't updated my blog in a while but here's some basic articles I wrote up last year:
http://www.bbbfinance.com/?p=79
My advise is the following:
Do you have under $500k in assets?
If yes then max out 401ks, IRAs and other retirement vehicles. They are protected from creditors by the government. Put 25% of your assets into gold coins. There's innate creditor protection in holding gold coins as creditors may not know they exist and thus you look like less of a target. Put equity in your home if it's in a state that allows protection. Same for annuities. Put 6 months living expenses in physical paper cash somewhere. Again, hidden from creditors. If you have under $500k, and have been contributing to a 401k/IRA all along, then you likely have hidden or shielded 90%+ of your assets.
If you have over $500k then hire an asset protection attorney. It will be expensive. That's why I say over $500k. You will likely spend a minimum of $10k and likely around $100k to set up protection. There's some cool things you can do with forming your own life insurance company, but you're going to drop around $100k doing it. If your net worth isn't upwards of $5M it won't be worth it.
I'd also suggest getting $2M to $3M in umbrella insurance. Not only does it work to reduce liability against you, but for purposes of asset protection, it counts as assets when determining solvency and whether you have illegally tried to shelter assets. i.e. you can't put 100% of your money in creditor protection without looking guilty and risking the judge to reverse transactions. However if you have $3M in umbrella insurance, then that $3M counts as seizable assets and you won't look like you've tried to hide everything.
Professional help is good, but it's expensive and only worthwhile when you have very high net worth. Don't be under the illusion that you can give an attorney $500 to form a trust, shift your assets into it, and be protected, because that won't do shit. You can certainty do it, and tons of attorneys will take your money to form a trust but it will be instantly pierced when you sit in front of a judge.
A good asset protection plan looks like a story that isn't about asset protection. Either do it within the bounds of the law (401k/IRA, home equity, gold coins, physical cash) or set up complex vehicles that cost tens of thousands of dollars. There's no middle ground.