I don't understand the headliner, but I'd love to see those other three bands! White Wizzard killed it when I saw them and I forever regret not seeing BBB before their old singer left. Vektor I'm sure would be great live (though I like the other two bands better).
7/19 - Megadeth
8/11 - Swashbuckle/Crimson Shadows
8/20 - Skid Row
9/5 - Spell/Manacle