My hardware list is very similar to yours, but I'll list it anyways, if only to reenforce the fact that this hardware works well with StreetDeck.
VIA EPIA SP13000
Nvidia GeForce 4 MX4000
Lilliput 619GL-70NP (The one that comes with MP3Car.com's WRX bolt in kit.)
XM Direct Tuner w/ homemade cable (Did not work great until I started using SD, now works great. In other words, MY CABLE WAS FINE ALL ALONG!)
Wireless via Linksys WUSB54GSC