I realize not many people approve of Creative's work, especially those in professional audio editing and creation.
I myself have a Creative PCI-e X-Fi Titanium running under Windows 7, and I have found it to be the best sound card I have used for clarity, features and flexibility. I originally bought the card specifically for the Game mode under Windows 7 using ALchemy, but have also taken to the music creation mode, in which it actually has a built in hardware mixer, able to add reverb, chorus and other effects on the fly, as well as a full hardware synth.
Creative also supply their own AISO driver that actually works quite well under Adobe Soundbooth and Fruity Loops Studio 9
24-bit Analog-to-Digital conversion of analog inputs: 96kHz sample rate
24-bit Digital-to-Analog conversion of digital sources: 96kHz to analog 7.1 speaker output
24-bit Digital-to-Analog conversion of stereo digital sources: 192kHz to stereo output
16-bit to 24-bit recording sampling rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48 and 96kHz
ASIO 2.0 support: 16bit/44.1kHz,16-bit/48kHz, 24-bit/44.1kHz 24-bit/48kHz and 24-bit/96kHz with direct monitoring
Enhanced SoundFont support: Up to 24-bit resolution
Analog output Signal-to-Noise Ratio (A-weighted): 109dB
Connectivity
Line in / Microphone In: Shared 1/8 mini jack
Speaker Out: 4x 1/8 mini jacks
Optical Out: TOSLINK 1
Optical In: TOSLINK
Intel HD Audio Compatible Front Panel Header: 2x 5-pin
This may be a cheaper alternative to your problem.
Kurtis