1) My "ideal scenario" is: that the suns trade Barbosa and the two picks for an earlier pick and select Randy Foy, the best guard in the draft. Foy is a complete stud, and can play backup point and the 2 position right away and create his own shot better than any guard in the draft. Foy is also a much more physical defender than Barbs at the '2'. Jay Bilas(former pro, current analyst) compares Foy to Billups as a physical guard, but with better ability to create his own shot. Unlike Billups, Foy has great hops to shoot over big guys, and his dribble penetration is excellent.
2) great scenario: suns trade the picks and maybe Jones to get a shot at Ronnie Brewer, who may be the most versatile big guard in the draft after Brandon Roy. Brewers' only downside for the suns is his 3pt shooting, which is lacking. Having a big guy like TT around, who can drill the 3, makes Brewers 3pt deficiencies less of a concern at the 2,3 positions. Brewer will be great on the break and finishing and a good penetrator in the half court. The suns defense against guards is suspect due to size and athleticism limitations of the current roster. Brewer is rated as more athletic than Joe Johnson(better footspeed and hops), but clearly not as good a shooter, but a better finisher. He should be a better defender than Joe was/is.
3) OK scenario 1: suns do not move up and they select shannon Brown at 21. Brown could address some of the suns needs for a physical combo guard, both defensively and offensively. Brown is a strong '2', physically, and could absorb some of the physicality at the '2' when Raja goes to the bench.
4) OK scenario 2: suns get sergio rodriquez using the 21 pick. I love sergios passing and ball handling skills, but I am concerned that he also is a defensive liability, along with Nash, Barbs, House, at the guard position. If the suns take sergio, they must find another guard who can defend to prevent the posting up of Nash, sergio and Barbs in the playoffs by the likes of the clippers and Lakers 6'6" + guards.
I wouldnt even touch the suns frontcourt, it already may be the best anyway with amare and KT returning.