Vostro 1500 fans, intake and exhaust locations? cooler blow or suck?

I have a Vostro 1500 on order and was wondering where are the fan intake and exhaust located? I think I read somewhere that the intakes are located underneath and the exhausts are at the rear but I can't seem to find that information again. Could someone confirm?

Also, I currently own a cheap plastic construction laptop cooler I got off ebay some time ago. It blows air upward and does the job for my current laptop (whose intakes are located at the bottom) but it's falling apart and I'd like to replace it. Which coolers are more effective for the Vostro, the ones that blow air upward or those that suck air downward. I was originally looking the Antec Notebook Cooler as a possible replacement only to find that it sucks air downward. If the Vostro's intakes are indeed located at the bottom, it would seem to me that blowing air upward would be more effective, but I've never compared the two so I'm not certain.

 

umm if its like the 1520 in my sig, it will have only one fn in the back left that sucks air from the bottom and blows it out on the left side