Cooling Options available in the Antec 1100:
1 x rear 120 mm exhaust fan (Included)
1 x top 200 mm blue LED exhaust fan with LED switch (Included)
2 x front 120 mm intake fans (optional)
2 x internal 120 mm intake fans (optional)
2 x side panel 120 mm intake fans (optional)
1 x behind motherboard 120 mm intake fan (optional)
Add two 120mm in the front.
Front intake, rear & top exhaust is good enough.
So, you could use one 120mm on your 212+ for a push~pull config & the other 120mm on the Hard drive cage.