buy any set of interchangables.
if you don't like them, you can recover about 90% of your cost when you resell them.
there are lots of interchangable sets, and each has its lovers/haters.
I love the boye set (aluminum) --but I love metal needles.
(the cables on this set are so so..)
others love Knit Picks (with their fantastic cables) but i am ho-hum about wooden needles (tips)
I HATE the denise (i just hate the soft flexible needles and tubey cords.. *but others love the soft flexible needles and cords!
There is NO ONE PERFECT SET.. there is only the set that is perfect for you!
(and you might change perferances too...
I used to use DPN's all the time (loved them!)
i don't hate them now, but i perfer to work on circ's (2 circ's vs any set of DPN.)
I'm keeping all my DPN's.. but i rarely use them these days!