cell phone with wifi and no data plan?

[Locrian]

My ancient phone (pay by the minute tmobile) is getting flaky and I'd like a wifi (unlocked) that I can use my sim card in PLUS get wifi (I have no desire to pay $$$ for a dataplan).

What kind of phone can I get that lets me do this - for maybe $150 or so? Is there an android os version phone? And are any of the 'knock off' HTC or Motorolas any good? http://www.amazon.com/Unlocked-Android-Phone-Touch-Screen/dp/B0052A25LK/ref=sr_1_1?s=wireless&ie=UTF8&qid=1313785300&sr=1-1


Or is windows OS ok? http://www.amazon.com/HTC-XV6975-Unlocked-Windows-Touchscreen/dp/B004VMJTGY/ref=sr_1_1?ie=UTF8&qid=1313672647&sr=8-1