Will my antec trupower550 PSU fit in a shuttle

Will it work and if it doesn't, what type of psus does it use?

I'm not sure if this will even work this is what i want to do

Shuttle XPC
with
XP-m 2600 at 2.4
6800gt
Happauge TV Tuner
2 Sata Drives
DVD Drive
floppy.

It WON'T fit with out extsive moding. Shuttles use a very small psu, like this

Shuttles have room for 2 3.5 inch drives and 1 5.25 drive.

The PSU comes with the Shuttle barebone system, and is good enough to power anything you can physically fit in it.

And ditch the floppy, who uses is anyway.. Then you should be good to go!