@@pmk001
Yes, you can do this using product attributes. And if you want to manage the quantity for each item attribute then you can also use QTPRO addon. Its easy to work and easy to handle.
@@bcleather
Try this:
1. Use Search-Engine Safe URLs (still in development)' to false.
2. 'Use Cache' to false
PS: To see the seo urls working its better to clear the cache and then check.