I have Smart Sams on my bike and I wouldn't hesitate to put the same size Marathon Plus/Deluxe/Extreme/etc... for you 35-622.

However, I'd look at a 50-622 personally if you're on asphalt most of the time.

These are really good tires for the money:

http://www.bike24.de/1.php?content=8...;product=39598

it should be noted that's €29.99 for a folding Schwalbe Marathon tire in a MTB size (559). That's one hell of a bargain as it includes shipping to my door.

if you're on this side of the pond, Schwalbe tires are super-cheap from German bike websites