1) Don't go for X-Fi XtremeAudio. It's just repacked Creative Live! 24-bit card.
2) If you can put 7k, get M-Audio Revolution 7.1 High-Definition 7.1 Surround Sound PCI Card.
3) Else get Creative Sound Blaster Audigy Value card for Rs.1,400
Maudio Revolution detail:
PCI solution for high-quality surround sound up to 7.1
24-bit/192kHz audio playback on up to 8 channels
digital out transmits PCM, plus passthrough of AC-3 and DTS
supports DTS(ES) output and Dolby Digital 5.1 (or EX 6.1) decoding using
8 analog line outs (4 stereo 1/8" mini jacks)
true professional 24-bit/96kHz mic/line recording (1/8” stereo)
SRS TruSurround XT delivers virtual surround with stereo speakers
SRS Circle Surround II transforms stereo content into surround
game support with Sensaura, EAX, DirectSound and A3D
powerful control panel for bass management and other features
supports all popular media players including Windows Media 9
includes valuable entertainment and music creation software
Specification
dynamic range: 106dB (A-weighted)
signal-to-noise ratio: A/D: 100dB (Typical, A-weighted)
D/A: 107 dB (Typical, A-weighted)
THD: 0.003%
output sample rates (kHz): 32, 44.1, 48, 88.2, 96, 172.4, 192
size/weight: 5” x 5-1/2” x 7/8”; .2 lbs.
Compatibility
Windows Media 9
Sensaura
EAX
DirectSound
A3D
SRS TruSurround XT™
SRS Circle Surround II™
ASIO 2
Mac OS X Core Audio
All Platforms
available PCI card slot
CD-ROM drive
Windows® PC
Minimum Required (for stereo operation)
Intel Celeron 350MHz or AMD K6II 500MHz
128MB RAM
Windows Me, 2000 (SP4) or XP (SP2 Home or Professional Edition only)*
DirectX 9.0b (included)
Recommended
Intel Pentium III 800MHz or AMD 800MHz
256MB RAM
DVD-ROM drive and decoding player application (included)
Windows XP (SP2 Home or Professional Edition only)*
DirectX 9.0b (included)
Power PC Platforms
available PCI card slot
CD-ROM drive
Apple Macintosh®
Minimum Required (for stereo operation)
Apple Macintosh® G4*
Mac OS 9.2.2 or later; Mac OS X version 10.2.6 up to 10.4.6 (not qualified for use with 10.3.9)
256MB RAM
Minimum Required (for multi-channel operation)
Apple Macintosh® G4* 733MHz QS
Mac OS 9.2.2 or later; Mac OS X version 10.2.6 up to 10.4.6 (not qualified for use with 10.3.9)
256MB RAM
Recommended
Apple Macintosh® G4* 800MHz QS or better
DVD-ROM drive
Mac OS X version 10.3 8 or 10.4.6 (Apple DVD Player required or AC-3 or DTS)
512MB RAM
Top Features
top-quality surround sound up to 7.1
24-bit/192kHz audio playback on up to 8 channels
PCM, AC-3 and DTS
professional 24-bit/96kHz mic/line recording
virtual surround from stereo