There are several ITX cases which include a Pico style PSU: an external power brick an an internal DC/DC board.
Akasa Crypto, nice and small, has a grill over the CPU area. 80 watts should be okay for dual core One slim optical and one 2,5" HDD.
Lian Li Q09, nice aluminum case available in silver, black and red, has a grill over the CPU area. 80 watts should be okay for dual core One slim optical and one 2,5" HDD, 110 watts.
Silverstone LC-19 nice aluminum case available in silver and black, has a grill over the CPU area. 120 watts, one slim optical and one 2,5" HDD or 3,5" HDD. VERY slim, hard to find a fitting CPU cooler.
SilverStone Milo ML02similar to the LC19. includes VFD and remote. 120 watts, one slim optical and one 2,5" HDD or 3,5" HDD. VERY slim, hard to find a fitting CPU cooler.
Scythe Kozuti cooler SHOULD (no guarantees) fit those slim cases, quieter than stock, enough power for 65 watt CPU.