The two “huge” CES Venues are the Venetian / Sands Complex and the Las Vegas Convention Center. The Las Vegas Hilton is also a major venue and is located “adjacent” to the Convention Center’s North Hall, though as with everything in Vegas you are in for some long walks.
Unlike the Venetian Sands complex, the Las Vegas Convention Center is *not* located on the Las Vegas Strip, so be sure to plan some extra time to get there if you are staying in a strip hotel. If you are staying in downtown Las Vegas you’ll want to consider a cab directly over or allow about a half hour to take the “Deuce” bus to the Venetian Sands and then another ten minutes to catch a CES Shuttle from there to the Convention Center Venue.
The Las Vegas Convention Center has three *enormous* halls, North (near the Hilton), Central, and South. Although you could spend all day in any of these you’ll probably enjoy yourself most by walking a bit faster, stumbling into interesting exhibits and spending time where you see fit. For first timers I’d recommend you avoid planning many appointments or mapping out your day – rather simply try to get a good feel for the exhibit halls, stop in at the interesting venues, and try to find a few CES parties to attend. If you are a blogger or press this will be easier because the parties are often geared to those who will create some “business buzz” for the sponsors.