Have you checked out Reef Fanatic's E ballast's for 129.00? They are suppose to fire everthing -including HQI's. They are less $$ than IC's and if you ever go "bigger" - it's the 250's. For heat issue- fans work great.
C'mon Jeff,,,,you are gonna wish you had 400 Watters soon enuf,
do what i did, jumped straight to them ,,,from160w of normal flo's to
2-400 W 10K's,4-55W PC actinics,,,,,
keeps the Police 'copter around ,,,,
what you never got a Xmas card from your utility company either?