Verisign certificates are expensive due to them paying loads for ad words etc. There greatest competition at the moment is GlobalSign certificates with extra features, SGC, 3 for 1 server licence, and highest mobile browser compatiility. Recently people like Virgin have switched from Verisign to there certificates saving them a lot of Money, even if I dare say it on here '******' use GlobalSign SSL.
If you want to give pronto a call my friend there will talk you through the ideal certificate for your requirement, he doesnt oversell his products, tell him what its for and he will tell you certificate that will suffice your requirements.
Hope this helps people who are looking for SSL, by the way prices arent listed on his website but for the Rapid, Geotrust certificates for the next week or so, he is selling them at a highly reduced rate, so contact him.