Hi IHScout, there is a ATHS National Convention & Antique Truck Show in May 27-29 at the Alameda County Fairgrounds in Pleasanton, California.
In Las Vegas my wife and I stayed at the Excalibur Hotel-Casino and went to the Imperial Palace to see the Classic Auto Collection, mainly cars and a few rare trucks. I hope you both have a great time there, we certainly did.
Ray

PS: If you do go to Las Vegas and take a walk down the strip at night you might bump into Candy give her my regards . And then you go out the next night  and she the same person could be Sandy   .

Ray, unfortunately we'll be home again before the ATHS show. Going from 30 Mar to 23 Apr.

Jimbo, Thanks for the tip, we had taken Portland off the itinery, but its going back on again now!!  

Just checked and the area I was staying and working in is called Northwest District. Good description including the names of the two restaurant streets in this Wikipedia entry:
http://en.wikipedia.org/wiki/Northwest_District,_Portland,_Oregon

Con-Way, formerly Consolidated Freightways and creator of the Freightliner, still has a large administration and IT facility in the area.

Thanks Rod. Heading that way next week. Have already spent a few days in San Francisco and drove across to Yosemite nationl park yesterday. Trying to stay off the freeways and have seen some older trucks as aa result. Not many photos though.

Had to change our itinery because the road over the mountains we were going to take was closed due to heavy snow (I hadn't thought of California having snow!). So found ourselves cruising along Soledad Canyon Road today. Quite an interesting drive and we stumbled across the Los Angeles fire department storage yard for old fire trucks. I kept checking the mirrors but no big Peterbilt tankers followed me!!!
The coffee over here is crap. Next time I'll bring my own espresso machine and beans. Stopped at a donut shop on Soledad Canyon Road and asked for two coffees, one a latte and the other a Capaccino! The waitress said "oh so you don't want coffee then"!  "What flavour do you want for your cupaccino and latte, French vanilla, mocca, or caramel?" I said can't we have coffee flavoured? No our machine doesn't do coffee flavour!!!! We tried the mocca flavour and it was like a warm choclate milkshake.