By start up are you meaning for learning with or the actual speed at which they take to reach full speed?
In any case, yes definately Technics, 1200's or 1210's. They are the industry standard and will last you a while.
When I first started I bought a cheap pair of Sound Lab belt drive turntables. Once I got used to them and had some cash saved up I bought a set of Technics M3 1210's (Direct Drive) and had to learn all over again! Completely different to the belt drive ones I had.
Belt drive's are probably cheaper if you don't have the money right now but i'd maybe save up and go for a set of technics.
One more thing for you to consider: Why not buy CD turntables?
I'm a vinyl lover but if I had the option and money for an update I would definately buy a set of Pioneer CDJ 1000's now over any turntables. Why?
Easier to carry around your music collection.
Loads of built in features.
Very similar to playing vinyl with the technology they have now.
These would be ideal for you if your going to be doing alot of scratching or for simply mixing tracks.
If your still wanting to go for the turntables I suggest you get some robust stylus and needles i.e. stanton. Stay away from concord ones as they are more for mixing.
Hope this helps