"StarShaving", whippeddog.com, and RupRazor all have reasonably good, reasonably-priced strops (based on what I've read here, and on the whippeddog strop I own).
+1 on this I own the poor man strop kit and two of star shavings strops the entry level 2" and the big mama (The big mama is my everyday strop as it has the pressed wool strop also) But all of these strops are excellent products IMHO