The Thermalright SLK-700 is not a heatpipe design. One of the spare coolers I have may be a SLK-700. Or maybe an SLK-800, not sure.
I have a couple of Vantec stealth fans in the front of my Lian Li PC-61 case which houses my main system. They're not as quiet as they'd have you believe. Luckily, the Lian Li case has three front fan speed options, lowest is Ok, they're there mostly to cool my 2 x 35Gb Raptor drives.
If you want a good, really quiet 92mm fan (measurement is diameter, btw) go for a Zalman 92mm fan, they really are quiet.
The SI-97 or Gigabyte cooler is your best bet. Both are fitted the same way, with cross centre tensioned clip.
Use Arctic Silver 5 thermal compound if you can afford it (it's around £6.50 for a small tube) and only apply a thin, even layer. Take your time fitting heatsink and be careful.
The 92mm fan affixes to the SI-97 by way of two tensioned clips that fix to holes in the side of the heatsink. If you're unsure, buy the Gigabyte cooler with built in fan.
Look, Mr psd99, I hate to say this, but you only get what you pay for. There is no Santa Claus and you won't get decent cooling for a fiver, despite what the (probably bogus) reviews on the supplier's site say.