Yeah those settings will work if you have the resources Chippa. I have mine set a little higher but as I mentioned earlier my system is pretty high end.
Also, as well as the curllow don't forget the pvr setting for live tv.
Yes, however I think I found the optimum settings for my system:
<advancedsettings>
<pvr>
<minvideocachelevel>25</minvideocachelevel>
<minaudiocachelevel>40</minaudiocachelevel>
</pvr>
<network>
<buffermode>1</buffermode>
<cachemembuffersize>262144000</cachemembuffersize>
<readbufferfactor>2</readbufferfactor>
<curllowspeedtime>300</curllowspeedtime>
</network>
</advancedsettings>
I tested it on a movie using a readbufferfactor of 2, and 150meg cache and everything was running like silk. Brought up the codecinfo screen by pressing O and the cache was filling faster than the stream (Ideal), with the stream staying firmly on 100%. The 150meg cache was filled when the movie was halfway, so I went back and increased the cache to 250megs and buffer rate to 4. The movie got sluggish, so I kept the cache at 250 megs and returned the buffer rate to 2 and bam silk again. Of course, all of this can be affected by the stream from the source etc. I was getting about 7Mbps and I have a 8 Mbps service.
Not certain about the curllowflow setting though, will do more research and play around with it some more later on.