Is Linksys a good brand? I have noticed that their network products are much cheaper than other brand name companies' products, but does that mean that their not as high quality; I've heard rumors that Linksys products are not as secure as other brand names. I really don't want to spend the extra money if I don't have to. I was looking at one Linksys product in particular: the Instant Wireless USB Network Adapter - Version 2.6. How well would this work on an Airport network when connected to a PC?