Need help finding a reasonably priced product that meets these requirements. (trying to avoid the major $$$ for Cisco Works)

I need to log and monitor firewall activity as well as need a full blown IDS system. The software must be compatible with M$ NT or Win2k. Have SQL servers for database storage and manipulation.

Have found plenty of firewall logservers but no IDS systems that will meet above requirements and use the text based logfiles created by those servers.

PIX 520 (two in failover mode)
6509 Switch

TIA