My advice would be neither. Some things to consider…
~ Do you need CDs? You’re adding a lot of weight to any potential system if you insist on having CD drives in your hardware. I’d figure out a plan that involves ditching the CDs and making the most of this new portable gear you want to invest in.
~ Both of those units you’re looking at are rather dated in the feature sets they offer. If you’re taking the time and making the effort to switch over to Serato anyway, no reason to intentionally lock yourself out of all the bells and whistles. Even if you don’t think you’d use them, having them available at least gives you the option to experiment and play around a little.
~ Broadly speaking, if you are considering the modular route (media players, plus mixer, plus whatever else) it’s because you are trying to integrate something otherwise not available in all-in-ones, or are trying to insert a much higher quality component into your performance rig (think fancy-pants mixer or such). Or alternatively you could just be a crazy person like me who enjoys bringing ten thousand parts to every gig – but that’s a terrible plan. Don’t do what I do. I’m crazy.
So all that said, my advice would be to look at something like the Mixtrack Platinum or NVII. Or step it up and look at something like the Denon MC4000 or Pioneer SB2 or SR (depending on budget). All of those options would give you a serious portability advantage over the options you are considering, and would still deliver a pretty solid “2 decks and a mixer” feeling for you.
** Edit: Thinking about this a little more… Look at the Denon range of products. If you do a lot of mobile they really are hard to beat.
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