Macbook

After many years of issues with Microsoft, I've made the switch to Apple. I was just curious of any external hardware to hook up my guitar to my Macbook via USB or Firewire. I considered getting a Tascam US-144 but I have heard it doesn't work with Leopard. Any suggestions for under $200?

I use an M-Audio Fast Track, which is about $130. I got it a while ago, and it suits my needs, but it's nothing special. I'm not sure what kind of things are on the market right now. There was an issue of MacWorld magazine a while back that had some really good reviews of some of the newer products.