Lasereth, don't let a bad experience poison you to overclocking. Those Mobile's are the most trouble-free OC'ers since the first Celerons. Recent 64's look good too. Some combo's won't work, and a single marginal component will torpedo the project. It happens to everyone. Return the part, keep going. It comes down to staying within reasonable limits for each part and leaving a safety margin. Pick the best recipe of tested components, stay simple, and move forward.
/pep-talk