I've found quite a useful little booklet, free, on the web for anyone interested in growing palm trees outdoors but doesn't live in south-eastern Florida or southern California.

Its on the Palm And Cycad Society of Australia website:
www.pacsoa.org.au/palms/Articles/ColdHardyPalms.pdf

In fact, there seems to be quite a bit of useful info stored under Articles (replace ColdHardyPalms.pdf with index.html).