Would my PowerStream 420w be enough for this?

[PascalT]

Q9450 Oced slightly
4gb of RAM
P35 motherboard
8600 GF 8600 Silent (stock speeds)
2 x HDs
4-5 USB devices
1 DVD/RW
1 soundcard
1 wireless card

Is it stretching it? I know the PSU can actually output more than 420w but not sure it's enough.

Thanks

 

[theAnimal]

You should be okay, it says 12V is 30A which is plenty.