You don't need specs, just stick with one of the following:
Creative Labs/Ensoniq AudioPCI
Creative Labs Soundblaster PCI128
Creative Labs Soundblaster PCI512
Creative Labs Soundblaster Live! Value
These are common cards, and the best choice at the $30 mark. (don't feel bad, we've all been there...that's for sure) BTW, those are in order from worst to best, so look for an SB Live Value.
All of these cards should be < $30 OEM. Check pricewatch.com ...although being in the phillipines it might not be so easy.
Slackmaster 2000