You can download youtube videos from this website directly keepvid.com and if u want to convert flv to any other video extension then use total video converter which provides a greater range to convert ur flv video into any format you want to.
There is always a leakage in validating any product and nothing is perfectly securable so i think there are still many ways to crack and validate a software without buying the validation key.
Its all a time of waste, internet theft has increased alot and i believe that they wont waste their money in giving u these special gifts in exchange for your points.
You can use the small version of microsoft windows live mail which doesnt take too much time to load up and also hotmail is better than yahoo cause it offers you even more space to store your emails in.
Safari is in beta version and i agree with Kiyougi that it oftens randomly crashes, it prefer internet explorer as its interface is really good and is also good at security.
I would suggest you make your website using Flash software which would enable shortcut keys over your website and can allow repeating of a function as well.