Recommend a Band / Recommend a DJ

I realize there's a gapI in price between the two, and it may come down to budget alone.. but please recommend me the BEST in each category.

A little background on me and my guests:

I am over 30 and I DO NOT LIKE CAN'T STAND rap and most hip hop, if they play that Soulja Boy song at my wedding *I*'m leaving. :) I like rock, My FH likes country and rock. We both like some dance music I like Justin Timberlake, Timbaland and stuff on that order.

The majority of my guests are retirement age or in their 30s. I want people dancing, and moving, but I do not want cheesy giveways or songs we won't recognize.... I'm eclectic in my taste but I pretty much stopped buying songs/albums/cds after 2000 so I don't even know what people would like.

To give you an idea I have concert tickets to 4 shows this summer:

Billy Joel
Maroon 5 / Counting Crows
Huey Lewis
Journey / Cheap Trick

Our wedding song is You Are The One by Eliott Yamin.

So please give me suggestions on bands/DJs that would keep people dancing but not be too sweet 16ish.

I already have spoken to Body Rock and Body Heat Franklin Wayne Music and LI Paramount (Renegade) I DJ with a singer and a precussionist would be great too.