I'm looking at getting a valve amp and was looking at a Marshall DSL401 Dual Super Lead JCM2000 Series Combo Amp (40 watt, 1x12 inch). Is this a proper valve amp if you know what i mean, and if not what is a proper valve amp. I mostly play Punk, Punk Rock, and Rock. Any ideas would be really appreciated.

Yea it's a proper valve amp, play one in a shop, it might be pretty good for you.
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Fender Strat/Tokai LS80>few pedals>Orange Rocker 30
Yeah it's all valve, pretty versatile but being all valve, is very valve-ey... Basically just be careful with your low end or you'll get very muddy very quickly. But outside that, a decent combo.