I am also interested in your experiences in this area. There have been many rumours as to which service is most effective. If you are feeling very ambitious, how about telling us who has the best scripts and contacts with registrars.
while others like snapnames , it has Never worked for me on any quality, generic .com that i have ever used it for. When it first started up there was actually a page telling you what your chances were to get a domain. i believe one of the examples was that if you were going for a top generic domain(i believe the example was a 3 letter .com) your chance of getting it thru their service was about 3 %. i dont know how that compares with today since they no longer show statistics.
i wish i owned a company that promises nothing and charges 60 for that privilege
as a member i have access to their expired list searches,which can be set for recent drops as 1 day,you also set it to select .com's only if you wish.I believe you can set-up a free
account.if not i know you can regg a name there for $15 with
free hosting and unlimited sub domains,which will entitle you full access!
Hope that helps.
Picked these of list..Skipants.net/skisuits.net/Bioterror.net/
casinocreditcard.com/paperchristmascards.com and others