Any opinions on the best 1/43 scale display case? For multiple cars that is, not cases for singles.

I don't know about the best, but here is a recent thread where several of us posted our 1/43 displays.

http://www.hobbytalk.com/bbs1/showthread.php?t=254124

Well I think I'm going to be getting a case along the lines of this
http://commerce.idmi.net/ecommerce/catalog_detail.asp?CID=123&CI=404&PI=7810#

And I have heard good things about Carney, I was just curious if they are that good or it's not worth the price.

I've got a bunch of acrylic cases for my 1/64, I like them a lot. Don't see why they wouldn't be just as good for the bigger cars.

Mine in the thread linked above is a Carney. I really enjoy this case very much, very well made.