I'm brand new to the mac sensation. but now I'm addicted. I've gotten mac to install using ideneb but I don't have good video, sound, or internet. I really want to switch over but I need everything to work... someone please help!!!

PC Specs...
AMD Athon 64x2 Dual-Core processor QL-62
2GB DDR2 667
ATI Radeon HD 3200
Atheros AR5B91 Wireless
Broadcom NetXtreme Gigabit Ethernet
Realtek Audio