I think practicing movement is the best thing. So when you enter a ACTUAL server with ACTUAL players, you MIGHT be able to stand a chance. For me, movement was the hardest thing to learn.
what makes it really bad, we bought it expecting a 160GB HD, at least that was what was promised, but was gippied, and we didnt want to go back and demand more.
Ya, it is not a 'absolutely needed for now,' it is a 'I would like to see.'
Custom skinning and such always makes games fun, and very user friendly imo. Lets people put their own spin on their gameplay and shows people's tastes.