Web Monitor Desktop Application

I want a desktop application built that will monitor service uptime. A person will enter a host and then different ports they want monitored. It will need to run in the background as a service as well and there will be several configurable options such as frequency of checking. An email will be sent when a monitored service is down. On the Mac, I'd like it to interact with Growl for desktop notifications (or if you can make something like that also would be great). On the windows side, a task bar popup would also be great.? The application will need to log data in a SQL Lite internal DB or similar such as last check time, ping time, service monitored, and result. I would like it to also have a graph of ping times made.? I will furnish all screenshots 100% exactly what I want, every screen. All graphics will be made ahead of time. I am also willing to pay a royalty of 10% of sales to the developer of this project which will go towards some updates later on. The product will be professionally marketed and have a polished look & feel. I'd like it to be made in RealBasic so it can be compiled in Mac & Windows, but I'd be open to other ideas. ? Mac Platform is mandatory, the windows app can follow later. ## Deliverables I will include screenshots to the winning bidder. They will be supplied in Adobe Photoshop format.