The XSPC kits do come with clamps, though they're not the best ones I believe, I think they're the plastic locking clamps. As was mentioned, worm drive clamps are much better. The Swiftech kit comes with worm drive clamps, but many people recommend just building a full XSPC Rasa kit rather than just the Swiftech one, though if you're doing CPU only, they're both more than fine, and you can even use the swiftech kit or XSPC kit still if you upgrade to watercooling on your GPU(s).
If you'd like to see a quasi-buildlog, check out mine in my sig. I build a new watercooling setup in my HAF-X, which is basically a 942, an upgraded version of the 932. I did an internal radiator install as well.
Also, when buying, I would do yourself a favor and imagine as much watercooling that you'd ever go with, so if going with the XSPC kit, I would check out the RX360 kit rather than the RS or the 240, so if you ever wanted to cool your video cards, you'll have the ability to, but it's up to you.