is fiesta a resource hog?

[KY_Jelly]

so my computer is pretty well built, and i'm on a pretty fast connection (28000 kb/s dl speed anyone?) but for some reason i cant run any music player and fiesta. Zune software wasn't working, so i switched to WMP since its a bit less resource intensive, that still was giving me some lag, so i switched to winamp, which is probably the smallest music player available, and i'm still spiking pretty bad.

So right now i'm worried, but does anyone have the minimum and reccomended specs for fiesta so i can see if my computer is just being weird or if this is normal. I'm sure they are on the outspark website, but opera breaks that page and i uninstalled IE.