Hi, im new to the forum,,, and i have a small question about USB hubs. I know near to nothing about them, but have come to find that having one would be extremely convenient. I am interested in having a mini one for a 15" powerbook... i have looked all over ebay and online stores to find one, and there are a lot. (i'm just a little unsure if i am getting the right thing or not). There are heaps of cheap ones... but would these be sufficient? If anyone could please give me some guidance as to what would be a good buy e.t.c... (what to get and what not to get). i dont really want to have to spend over $40 AU, and dont really want one that has an external power source. any help would be greatly appreciated. thanks!