Web crawler and domain finder 2

i need a program that will crawl a website looking domains that aren't registered. 1) Must be fully multi-threaded 2) Will take a text file list of domains or urls to crawl 3) Configuration file allowing me to specify what ip's to use per connections and how many connections to make per domain and or in all. 4) Configuration to follow or not follow [login to view URL] 5) Ability to set browse type/referal info and amount of requests to make between connections. 6) Ability to follow dynamic redirects/java or non-standard links 7) Output of the domains found that arent registered and what page it was linked from. 8) Ability to specify what depth to crawl..IE just that domain or follow the links or follow the links of the links etc etc. 9) Output pagerank of url that the domain was found on and the pagerank of the domain that's not registered. 10) Keep track of all pagerank of all web pages crawled plus amount of external links on that page. 11) Must not have any limits on amount of domains/urls it can crawl or how many pages it can keep track of. 12) Full proxy support 13) Bonus if you can check dmoz/yahoo listing status. 14) Program must uses little cpu/memory footprint and ideally be able to spawn thousands of connections with no problem. 15) All work must be completed on my server. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform This will run on any linux system and preferably freebsd also.