Call center application using Asterisk

I am new to Asterisk and need some help getting to where I need to be. I am opening a callcenter and I will want to use softphones. I am running AsteriskWin32 and would prefer if you can maintain me on Windows. I'm not a fan of Linux. Right now, I have 10 SIP trunks, this will grow. I also have a broadband connection of 4 mb. I can make and receive calls at the moment, but thats about it. Also, I have the one computer that I will use, but I will be expanding. This computer is serving as the Asterisk server and the first operator, but as we expand so can the system. What I need (or so I think): I need a pbx manager that will manage incoming calls. When an incoming call comes in, I will want the app to open a webpage and transmit the caller id and dnis info in the page (example: [login to view URL]"dnis from caller"&callid="caller id from caller"). Also, depending on the dnis, I would like a welcome message (hold music) to play before the call is answered by an operator. What I mean is, depending on the dnis info, the hold music will be different. In addition to this key feature, I would like other features like call transfer, hold music (determined by dnis), call recording, search for available operator, call forwarding to specific phone numbers defined by dnis, reporting (like queue, call length, various measurements), sending incoming calls to remote locations, and outgoing calls via skype when we hit a max number of minutes or when we call long distance. Chances there will be more/change orders as we go forward, so you will most likely make more money in addition to your first bid. I also need a soft phone, I am testing a free version of a few, but if you like one, let me know. Please keep in mind that we will be expanding, so I don't want to hit extension limitations. IMPORTANT: part of your task will be to educate my as to the use of this system. I am an asp programmer so hopefully I will be able to keep up. If it works out, you may become a regular contractor for me for system maintanance. Finally, I have a beginners budget for this project, so please give me your best bid. Any questions, let me know. Thanks Jack