|Subject: Re: Traveller's checks in the US|
You might also consider the American Express Travelfunds Card... http://www10.americanexpress.com/sif/cda/page/0,1641,18622,00.asp
I've not used it, but it looks like a better/more convenient option than cheques, and is safer than just cash.
Hope you enjoy Michigan. The lakes are gorgeous this time of year.
Good luck, Erik in Chicago