Well I can only assume that your choice of watercooler system could be based from one of three reasons:
1) That you are relatively inexperienced with watercooling and you haven't done much research on the subject
2) You're cheap
3) You have a limited budget
Well, to answer your question about the two examples you gave us to look at - neither really lights a fire as far as something that might help you keep your system cup?) cool.
The coolermaster product has a given flowrate of 45lph. That translates to 11.88gph. When compared to the bottom line pump offered by Swiftech (MCP350) that is about 100gph LESS and 300gph LESS than their top of the line MCP355. That/s not only ridiculous but will end up being harmful to your system from a false sense of security. Top-of-the-line air coolers do much better than this. Bottom line: don't waste your money on this kit.
The Asetek LCLC kits were designed for OEM use as, according to Asetek, they would allow OEMs to offer computers with low-cost liquid cooling solutions. Now, it was impossible to find the technical specs on the pump other than it is a proprietary design integrated into the CPU waterblock (much like the coolermaster kits). You can read what THEY say it can do but as for its reliability, there isn't much testimony to support it (from impartial and credible testers).
Now, the questions are:
Are you serious about getting into liquid cooling?
Do you have a definite budget?