I will be there and this will be my fifth year. The first year my wife and I attended, we stayed at one of the hotels near by. It was a very nice hotel and I have heard that some of the others are very nice too. It is a good alternative, if you can not get a room at the host hotel.
Since our first year, we have stayed at the Radisson.
I highly recommend staying at the complex that makes up the convention center. The parking lot fills up very early and it gets to be a real pain, finding a parking place every morning.
Actually, there are two hotels hooked together at the convention center. There is the Radisson Inn and the Scanticon Hotel. Although the Scanticon is not listed on the Expo web site as one of the hotels, I believe Hopkins reserves a block of rooms in that hotel for exibitors. The elevator for the Scanticon will let you out very near to the entrance for the Expo. in the convention center. Although completely inside, it is a little bit of a walk, from the Radisson.
Between the two hotels, there are several restaurants, although they are not cheap. There are also a number of fast food vendors on the lower level of the Expo, if you would prefer something quick.
Good luck and I hope to see you there.