hey guys, im a newb at this. Looking for a straight razor to buy, but am a little confused. im looking on ebay and other straight razor sites, and alot of the blades either say: 440 Stainless steel or Carbon Steel.

My question is what type of blade is better? longevity, sharpness, likeliness of rusting... etc etc

here are a couple of the razors im looking at:

Very Best Straight Razor knife Pearl engraved New - eBay (item 110419641823 end time Aug-06-09 20:40:03 PDT)

Master Cutlery Stainless Handle Straight Barber Razor - eBay (item 150363403204 end time Aug-07-09 18:13:12 PDT)

thanks for any help...
HP