you've basically got a refurbished arcade system (200 brand new, but not a jasper so closer to 175) with a (resale value wired/wireless) 20/35$ controller and a (resale value) 50-60$ wireless adapter. to be honest, if you paid 425 for the entire thing originally, you paid too much since the current street value of this stuff brand new is 200+40/50+80, around 320-330 depending on the controller.
425 is too much. 350 is too much, too, obviously. closer to 275 or so, depending on the type of controller. do the math.
what kind of 360 is it? that makes a big difference. if it's a jasper (12.1a on the back sticker above the power plug hole), then it's worth more than a falcon (14.2) or one of the two original models (16.5). also, did it get a new drive or just a firmware update? that's easy to tell if you can determine what kind of drive you've got. pull the front faceplate off by yanking on the usb port hole (doesn't void a warranty). underneath the numbers '360' should be an oval hole. if it's got red wires and a bit of circuit board OR a blackish divot and no real hole, it's a samsung or hitachi drive. they're noisy and prone to failure. worth less, came with the two earlier versions of 360s. if it's two white wires in the hole, it's a Benq, worth more. still noisy, but not like a vaccuum cleaner. pretty reliable. worth an average amount. if it's two yellow wires, it's a Lite-On, and that means that it has to be a jasper. they're super-quiet, and if you're not stupid they won't RROD. worth the most, currently.