Another price check: S&W 5906 Novak.

[Gunmaster45]

My Standard Catalog of Firearms prices a S&W 5906 in that condition (excellent) at about $500. With the Novak sights, I'd say add $15-20. For the three spare magazines I'd add $30-40 since they are factory high-capacity mags and the price for most S&W mags is around $10-15.

Hope I helped.

[MT2008]

Most of the 3rd Gens Smiths go for around $400 to $500 nowadays, I gather, depending on condition. I haven't looked at a Blue Book in a while, but that was the trend I noticed.