New Orleans' eclectic sons the Iguanas are back with their post-Katrina ode to love, loss and the city they call home. Derailed by a hurricane and scattered to the four winds, The Iguanas fought through hell and high water (literally) to complete ''If You Should Ever Fall On Hard Times,'' their first album in five years. Not since the stone-cold classic ''Plastic Silver 9 Volt Heart'' in 2003 has the world heard the simmering blend of roots, swamp pop, tex-mex and rock that The Iguanas have perfected over the past decade. Much of it was written while the band relocated to Austin, TX as a result of the storm but was recorded in New Orleans - the city that inspires them, the city that moves them, the city they call home. After the storm it's been said that the dance floors are dirtier, the nights are hotter and the drinks stronger, but then again, that's how the Iguanas like it.