why don't you save up another $40 dollars and buy a brand new Arcade unit instead, personally i don't trust refurbished Xbox 360 specially the early models..
About taxes it all depends where you live, here in New York is 8.3% taxes ..
You don't seem to be in a budget if your deciding to buy accessories ..
Wireless adapter = $100
512MB memory unit= $50
60gig HDD= $100
Rechargeable batteries= $12.00
Quick Charging kit= $30.00
Head set= $20.00
Live Gold card= $50.00
Wireless head set= $60.00
Extra controller= $50.00
Messenger keyboard= $30.00..
If I'm you I'd stick with a Pro model is cheaper in the long run.


My Trigger Happy Sixaxis controller








