I'm think I'm almost ready to order my parts for an unsplit design. I was wondering if someone could look and see if I'm about to make any major mistakes or has any advice before I start building this thing.

Optics:
220mmFL (http://www.diyprojectorcompany.com/catalog/product_info.php?products_id=121)
320mmFL (http://www.diyprojectorcompany.com/catalog/product_info.php?products_id=95)
S15 Projection Triplet (https://secure.lumenlab.com/shop/product.php?id=3)

Lamp:
MH 400W U Lamp 4000K (http://www.hidirect.com/end_user/endsmhlamps.htm)
400W MH QUAD CWA C&C Ballast (http://www.hidirect.com/end_user/endballasts.htm#Standard%20Metal%20Halide%20Ballasts)
I assume it won't be too hard to find a suitable base.

I also plan to get 2 80mm fans with mesh covers. Right now I'm bidding on a LCD monitor on ebay, a Gateway FPD1530.

Am I on the right track to making this thing work or am I missing something important? Thanks.