Hi MeerFall, welcome back! n~n
There are so many people from the UK here, makes me kind of jealous since I'd like to go visit sometime. But eek good luck with those exams, things can get pretty tough! In my case I'm a procrastinator who doesn't like to study so I never did spend a lot of time on that and.. it kind of hurt me sometimes. xD; But luckily I tend to do well in general, haha. Computer science seems like a really interesting major and I wish you luck in getting there! I've a few friends who are going down that path, too, and they sometimes mention it being pretty difficult.
But definitely get a 3DS! You still have a while until X and Y are released so take these many coming months as time to convince your twin to get the system. I don't think any Pokemon fan will want to miss a game that looks that awesome and hopefully they don't, either. ): Show them some images and videos to get them anxious for it! Out of curiosity, is Dewott your favorite Pokemon?
But anyway, definitely try and stay active this time as we'd love to have you. Since it's been a while you should probably re-read the rules as a refresher.. but other than that, post away and have a wonderful time! <3