Wow! We held our event this past weekend (10/15/11) and it was GREAT! We brought in about $45,000--we still have to do a few calculations but this is a pretty close estimate!!
One thing I definately noticed was that the vacation packages that were within driving distance seemed to bring us the best return. I simply pulled out a map and looked around at other cities, towns, and community within our state and neighboring states and focused on one destination at a time. Once I got a hotel, and attractions lined up, the rest fell into place. I have to admit I learned a lot about the history of the State of Colorado which helped me tailor some of the travel packages to fit different personalities.... for example, I did a ski package, a haunted package, a mining package, an performing arts package, an old west package, etc....
This list has been a great resource, however; instead of sending to the suggested national name brand companies, I used it to help with "thinking outside the box" and sent to more local vendors that dealt in the same types of items--I really think it paid off, as our previous events averaged around $40,000 and considering the economy, I feel this years was a HUGE success.
My suggestion, utilize the web, find a location then search for attractions--it isn't that hard or time consuming--before mailing a request, give them a call and get a feel for whether they are generous or not, you can tell a lot just by talking with them. (and this saves postage as well)
Good luck my friends