Hi Kai,
I had lot of ideas long back but due to the availability of components,most of them don't get started.My recent Idea was a stand alone device which would dial up the isp and log on the predefined ip address and update the data,also to send mails.
But this never started because of the different protocols that are available and the time required to implement all the protocols as per the rfc's is really very difficult.

Then I tought I will learn sometin about GSM,like SMS process control...But here the investment is huge.I am still a student(I even work{I am 21 yrs old}).

Now I have notin to think and I am a bit confused...

Rgds
Raj