First of all, welcome to AH!
I can't really comment on the TSP side of things really. Never used it and it's never really interested me too much. There are still DJ's out there that use vinyl - I used it myself for a bit a gigs and stuff, but the bulkiness of it started to become annoying. Lugging a heavy record bag too and from the venue wasn't fun. I opted for CDJ 1000's MK III's when I decided to switch to CD. Yes they were top of the range but I reckoned if I were to be using them in clubs then why not buy them and know what I'm doing with them!? And the money I've saved from not buying expensive vinyl any more has probably paid for them by now. Admittedly there's not a huge amount of difference between those and the CDJ 800's. They do a lot of the same stuff, just without a few of the features of the 1000's.
The 1000's have a 'wave' display on them so you can see the breaks in the tracks just like you can on vinyl.
Personally I don't see the point in buying the 2000's straight away. Yes they have some cool feature like that touch tracking pad and some cool other stuff, but will you use them? I can skip to a rough part of any track in about 1 or 2 seconds. And half the features on my CDJ's I don't even use anyway. They do look very pretty and colourful though
If you're quite creative though in your mixes, then the 2000's may be more to your liking?
Just my two pence like....