Funny you mention it, Jarron Gilbert is who I'm hoping we take in the second; so, good eye!
But, taking a WR in the 2nd, if he is not available, just seems crazy to me. I agree we can address ILB and SS in the 4th, which is where my draft board has us picking them up. But in the 3-4, you cannot have enough lineman. These guys are asked to be blocker eaters. Many times they are absorbing double teams. With the loss of Canty and Tank that leaves of with Jay, Ratliff, Marcus Spears, Jason Hatcher, Stephen Bowen, and Marcus Dixon. The last three were relief players only in 08. Without drafting some help that can contribute immediately, you are asking these guys to take on a much larger role; for me, they haven't earned that trust.
I guess, my biggest problem with not addressing our needs on the line early, is the fact that so many teams are moving to 3-4 from the 4-3. Think about it. A 4-3 defensive lineman, is typically better served as an OLB in the 3-4. See the transition of Demarcus Ware, Greg Ellis and Anthony Spencer. So, with that in mind, DL that fits the 3-4 mold are going to be hot commodities in the draft, meaning the Cowboy's need to address these deficiencies early. This also means, the of other positions will fall slightly, in particular, WR. So, I think the Cowboys could find players like Johnny Knox, Kevin Ogletree, Ramses Barden, Aaron Kelly, Mohamed Massaquoi, Tiquan Underwood, Mike Wallace, or Marko Mitchell as late as the 5th round. All of these guys could easily compete for has high as the 3rd spot on our roster, which is about the best your are going to do, even if you are picking a receiver up in the 2nd round.