Stick to the basics, such as Break Free CLP, and you'll be just fine. Wipe the gun down after lubricating...you don't need the thing to be dripping wet. If you feel the need to grease the rails, just a little dab of Tetra grease is all you need...rack the slide a few times and wipe off any excess that squeezes out.
Heck, I still use Hoppes oil for a lot of stuff, and that's just 3-in-1 oil (which is under-rated, BTW; it might actually be tool-grade oil, which is better filtered). Other times, it's Rem Oil.
For grease, I use brake lube (a synthetic "carrier" with molybdenum disulfide), mostly because I get it free (or at least very cheap) at work. Works great for me and I'm happy. My guns always work.