Suck or blow? Can you tell from the pic? As mentioned, the fan is pushing air out of the case; it blows the case air over the PSU and out the grid on the back where the plug and switch are. This is the case for all PSUs, unless stated otherwise.
Antec makes good power supplies, but check this Corsair out:http://www.newegg.com/Product/Product.aspx?Item=N82E16817139004&cm_re=corsiar-_-17-139-004-_-Product
After the mail-in rebate it comes to only $10 more, and is a better supply. It supplies almost 30% more power on the +12V rail, I would recommend it.