Thanks for the comments guys.
Sometimes I get wordy, so using the implied emotions of our stock smilies, here are my impressions after just one workout:
Arian Foster - ready to back-up Slaton, just need to see him in pass pro more
Mario Williams - dude, yo.
Andre Johnson - yep.
DeMeco Ryans - in control.
lil' Gibbs - impressed so far.
Brian Cushing - coaches seem to know his strengths.
Glover Quin - don't get hyper-excited, but he's intriguing for sure.
Kasey Studdard - I'm a little surprised, too.
David Anderson - stop underestimating him.
Glenn Martinez - caught my eye several times.
James Casey - choo choo... all aboard!
Amobi Okoye - oh boy. at least he's giving Cody and Okam more reps, they're a'ight.
Rex Grossman - duck and cover.
Antonio Smith - saw little that impressed me today, but I could've missed something here.
Dunta Robinson's agent - no explanation needed.
Ryan Moats - Not bad, but not great either. Brown and Foster should be ahead of him as Slaton's backups.
Cliff Washburn - hard day at LT. Wished Butler was at LT instead of RT today.