I have a CD MBP 1GB RAM and connecting to the internet in OSX is hell! Downloading in OSX via WiFi I've never had speeds over 32 KBPS, Compared to Windows Vista where I can constantly download at over 100 KBPS. Also in OSX the reception would only be two bars, but in Vista it would be full (five bars) same location and everything. Also when I decided to hook up my dsl modem directly to my MBP it was a big hassle to get it to work. But the speeds were decent probably comparable to using it on my other PC.