Looking for a high end reporting tool

Hey guys. Hugo here. I'm looking for a high end reporting tool. I need something that will allow for the following:

1)Keyword reporting. What keywords are being searched for and on what search engine(s). How much traffic per keyword(s), etc...
2)SERP reporting. What ranking do specific search terms have (data must be reported for Google, Yahoo, & MSN at the very least). The key here is that this data must be logged so that I can refer back to it at a later date i.e. what position was I in on March 13th of this year...
3)This must be software application that gathers the data from server logs,etc... It cannot be a third-party tracking counter (I cannot insert a snippet of code in web pages).

I have recently been retained by a large corporate entity, and I am working on a report that will justify sweeping changes to a site's internal linking structure (anchor text changes, etc...) and general seo initiatives.

They were working with web position gold, but I am not sure that this is the best tool for the job at hand. Also, money is not really an issue here.

I would appreciate the help.

Hugo

tell me your opinion about net tracker from sane dot com

have to check it out

I just realized that our "omniture" software and "business objects" software can take care of the log analytics.

What I really need is SE ranking program/software that will allow me to pull daily/weekly/monthly reports about specific search term positions for specific search engines (namely google, yahoo, and msn).

There are many programs like WebPosition Gold that will check positions. However, I wouldn't recommend using them daily as SEs have policies agains most automated positioning validation.

Note: with G you can use software that uses the Google API to avoid abuse problems, but most software that uses the API only checks G.