Looking to buy some speakers and have a budget of $60/£40. These will not be for an audiophile (as you can no doubt guess, judging by the budget!) - they just need something cheap and cheerful that will be an improvement on their current somewhat tinny Mac Mini inbuilt speaker. Also need to be as compact as possible. I know most of you will have impeccable audio taste and bigger budgets, but if you can recommend anything half (or even a quarter )-decent for this price, I'd appreciate it.