Do you know why you have about one year to finish this project? If not, i will tell you(and i you really seriously don't, you shouldn't be in college)
The reason is so you can THINK about what you are going to do. And the reason for letting YOU decide? So YOU can have a chance to prove what YOU know, not what others can dream up.
If i was to give you an idea, what makes you think that i would want you to get all the credit for my idea? When you get your degree, are you going to come to this same forum and ask for ideas to build? I am almost positive that everyone here would be absolutely FURIOUS if our ideas made you rich, famous, or even made your life a little better. I personally would be pissed.
College students that can not think for themselves are scum to me. The world has no use for people that need help for every waking step of the way.
Baftab, i am not attacking you, but i do think that since you have made it this far, there is no reason for you to sluff off now. I am sure you would get a lot more help if you would have added your two cents before begging us to give it to you.
I am sure this whole community would be more than happy to help you, if you would do enough work to make us feel good about helping you.
I would suggest you take the weekend off and start wandering around electronics stores. That would give any geek ideas. If you find something interesting, try to think of ideas to make it BETTER!
All i can say is good luck...