I actually shave my head while leaving a trimmed beard. For a shaving oil I just use baby oil... a few drops mixed with a few drops of water works better than a lot of far more expensive shaving creams. Baby oil is cheap... a $1 bottle would easily last you years of shaving every day.
For razors I use the Dorco Pace 6 Plus: http://www.dorcousa.com/sxa5000-6-bl...ystem-for-men/
While I'm sure straight edge or safety razors have their advantages, anyone paying for the overpriced Gillette cartridges and razors will quickly realize how bad they are getting ripped off if they try the Dorco Pace 6. It's actually a better razor than the Mach 3 and the handle and cartridges are far cheaper. I can get a lot more shaves out of one cartridge than I could with the Mach 3 too.