Need some advice, if people don't mind helping out.

I am working up a Wizard/Rogue as part of a three man group that's largely unfamiliar with the dungeons. I'm pretty new, so I won't have access to large quantities of cash and a stack of inherited gear. With the roles I'm taking on, I know the Wizard would need level capped concentration, and the rogue would need open lock, disable device, search, and spot for the dungeoneering (I'm forgoing the rogue's other two functions).

Using the <insert rogue skill> guides in the compendium, the impression I get is that I'll just be barely scraping by on hitting the "everything else" DCs for the dungeoneering skills only by putting all my skill points into those skills and ignoring Concentration altogether.

I'll start with 18 intelligence. Dex and Wisdom will be around 10. Constitution will be 14.

Any suggestions on how I can get a decent standing concentration without having to rely on the loot RNG and not destroy my rogue skills? The only work around I can think of is possibly taking Quicken as a metamagic bonus feat early and learning to suck up the extra cost, along with losing 12 enhancement points in an effort to mitigate it.

I love turning monsters into drooling idiots and burning them too much to go back to hacking away with a sword, but I equally love defeating traps and getting into locked chests, and my friends like me doing that, too.