Adam Schefter of ESPN reports that the contract covers five years, with a base value of $11.8 million and $8.5 million guaranteed.
2009 Comparable Contracts
24th Pick (as was Bryant)
Peria Jerry DT Atlanta Signed 5 years, $13.25 million ($7.55M guaranteed)
22nd Pick (Closest WR)
Percy Harvin WR Minnesota Signed 5 years, $14.25 million ($8.4M guaranteed)
Looks like a reasonable deal.