Haven't updated this in a while, so I'll just add what I've read the last week or two.
Subterranean - James Rollins
Not bad, fast paced, interesting concept. Just felt a little empty in the ending, which is typical for first novels.
Last Witness - Jilliane Hoffman
This was only ok. It spent too large a section bogged down in lawyerese, etc. Over all decent story, and a reasonably original take on the witness themed plot.
The Alexandria Link - Steve Berry
Decent thriller that kept me churning along. Very much like Dan Brown in style and themes.
Dead Men - Stephen Leather
Pretty decent thriller. Only complaint was that it felt like it was a bit generic.