Having done a bit a laminating myself, I offer these tips:
If I were to do my sink countertop over, which someday I will as I am not crazy about my stock white one, I would also laminate the bottom of the counter top with V-32. V-32 is a cheap brownish, very thin laminate used to prevent warpage. If you laminate one side of a long piece say 2' by 7' on just one side, and that piece is going in an area of high humidity, moisture could be absorbed through the unlaminated (bottom) causing warping. V-32 is a cheap way to really seal both sides for a good stable slab. It may be overkill, but I have yet to have any problems with anything I have done this way.
Bob Thompson's idea with the dowels is good, but if you are doing a 2' x 8' run, that's a lot of dowels. I have found that laying out wax paper over the wood surface works well. You carefully "peel-out" the wax paper once the laminate is in the correct position. Because it's waxed, it won't stick. And cheap too.
Once the laminate is in place and the wax paper removed, you should apply lots of preasure using what is called a J Roller. This ensures a real good bond.
You also want to make sure that there are no splinters of wood, dust whatever, between the laminate and surface. This will cause an unwanted bump once the marriage is complete. Check both surfaces carefully before commiting. As mentioned above, sides/edges first.
Sometimes I wish I were living in the stone age. Then I would know I'm the smartest person in the world.