What can I buy to make audio sound better on my pc? I already have a good sound card ( Creative Sound Blaster X-Fi XtremeGamer) and sweet headphones (sony 50mm extra bass).... My other specs are: Windows Vista -32 Bit, AMD Phenom 9600 2.3 (quad-core), Nvidia Geforce 8800GT, 4 GB DDR2 Dual-Channel Ram.