get retail cpu and the Vantec HSF, you just pay about $15 more for the retail cpu.
no overclock - buy retail
overclock - must buy retail - they don't care if you burn it, just don't make physical damage or cut the bridge, and remember to keep the stock HSF and proof of purchase for warranty exchange.
just pay $15 more and get easy to abuse warranty for 3 years - what a deal!
retail advantages:
less chance of buying remarked cpu
3 years easy to abuse warranty
protection box for shipping the cpu to someone else if you want to sell it in the future
installation instruction manual
logo sticker
not bad HSF