i would think an army with lots of skimmers would be a bit troubling for you though?! perhaps a daemonically possessed predator with autocannon - statistically the best weapon for killing skimmers, might help??! (and it's 'daemonic' so it still fits the daemon bomb theme, yes?)
also, it would be interesting to see your army cope with a tournament that doesn't allow the players to move about the terrain! (especially when playing on fully sculpted tables where you can't move the terrain

)
cheers!