For comparison sakes Tampa Bay just signed DT Brian Price. His deal is for four years, has a $2.72 million signing bonus, and could be worth $5.35 million if he reaches all his bonus options. His base salaries are $320k in 2010, $405k in 2011, $409k in 2012 and $575k in 2013.
Price was the 35th pick overall in this year's draft. For comparison, James Laurinaitis was the 35th pick last year (Patrick Chung was #34.) Laurinaitis' contract was also for four years and was supposed to be worth $5.09 million, with base salaries of $395k in '10, $620k in '11, and $500k in '12. I couldn't find other details, but I did read Price's contract represented about an 8% increase over Laurinaitis' contract.
Here are the Pats' remaining draft picks, and players drafted at the same spot last year. My guess is their contracts will be about 8-10% more than their 2009 counterparts.
#27: Devin McCourty
-2009: Donald Brown - 5 years, $11.235m
#42 Rob Gronkowski
-2009: Jairus Byrd - 4 years, $4.150m
#53 Jermaine Cunningham
-2009: LeSean McCoy - 4 years, $3.47m, $1.72m guaranteed
#62 Brandon Spikes
-2009: Sen'Derrick Marks - 4 years, $3.117m
And hopefully make all the teams that passed on him question why they did it 
