Help me with sub choice/box

ok so i have a box that's 13*16*24 and i need a 12" sub for it! the old one died, and i have an 11" cutout for a new sub, and a 250 watt plate amp.
this looks like a nice sub, and I like the brand. Will this work well with my 3/4 mdf box, and if i want to port it, what port should i buy at partsexpress to get a good balance of low freq/spl?

http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=295-464&scqty=2

that's actually the sub i woul dhave reccomended you...heh.

Thats not a big box for porting.........
Look at the DIY Sub thread, and then you can get that program, enter in the dimensions of the box and they type of sub you have, tune it how you want etc etc