Yep, and this team (if it could be brought together):
Nash/Brooks
Richardson/Pietrus
Smith/Hill/Childress
Frye/Warrick
Gortat/Siler
is deep and versatile. I have no idea what Richardson will command salary wise though and its of course tricky with the new CBA coming up.
But looking at that roster versus what the potential other Western Conference rosters should be for next year the only teams you can say are for sure better are Dallas, OKC and LA. None of those teams I would say are leagues better either. LA may go through a shake up and they'll have a new coach, so maybe not even them.
If you can do a trade like that which pushes you into the top 4 teams in your conference, do it and maybe the Suns get an easy playoff draw and make some noise like they did 2 years ago.