If you are using Vista a Xfi has no distinct advantage over on-board audio at present. A lot of what makes the addon board great is not supported in the Vista soundstack. A better bet would be to wait for the new boards to come out... which AFAIK is only a few weeks from announcement.
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Currently playing: RCT3(PC), DMC4 (PC). SW: Force Unleashed (PS3)
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Intel C2D e6700 @ 3.33GHz |Gigabyte - GA-EP45-DQ6 | MSI NVIDIA GeForce GTX 280 1GB
2x Raptor 36GB in RAID0 (OS), 5x Seagate 250GB in RAID5 (1TB Storage)
CORSAIR XMS2 Pro 4GB (4x1GB) | LG L226WTQ 22" Widescreen TFT
Creative X-FI | Vista Home Premium x64, Suse x64.
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