Oooh, another Ringo and Weber fan! I love both of those authors
Try...
David Weber: (A lot of his works can be downloaded, free, from http://baencd.thefifthimperium.com )
Oath of Swords, Sword God's Own, Wind Rider's Oath
Off Armageddon Reef, By Schism Rent Asunde, By Heresies Distressed
Armageddon Troll
In Fury Born
Hells Gate; Hell Hath No Fury
You've already mentioned the Honor series, which runs something like 12 books these days...
Basilisk Station, Honor of the Queen, A Short Victorious War, Field of Dishonor, Honor in Exile, Honor Among Enemies, In Enemy Hands, Echoes of Honor, Ashes of Victory, War of Honor, At All Costs, (Upcoming Mission of Honor)
Side stories:
Crown of Slaves, Torch of Freedom (due out 'soon')
Shadow of Saganami, Storm From the Shadows
With John Ringo: March Upcontry, March to the Sea, March to the Stars, We Few
I love this story; it's a gigantic bildungsroman (coming of age novel, or in in this case series) showing how Roger McClintock goes from being a spoiled brat... to a McClintock's McClintock; a warrior beyond compare, a man of honor and a naked sword in human form.
John Ringo (WARNING: this guy is an 'adult' author in a lot of ways, he does not pull his punches. I'll specifically note the ones that will be particularly disturbing, but his work is military sci-fi):
Legacy of the Aldenata (Or Posleen War, or another few names) is a great series, but it's a PITA to list. There's a 'core' series, Hymn Before Battle, Gust Front, When the Devil Dances, and Hell's Fair, but there are also several stand alone novels or secondary series and I'm not even going to bother trying to make sense of them.
Council War Series: There Will Be Dragons, Emerald Sea (NOTE: attached short-story is very graphic... and set in a harem), Against the Tide, "East of the Sun, West of the Moon" (Note; despite titles this is a sci-fi, not fantasy, series)
Paladin of the Shadow Series (NOTE: This series is the one I was thinking of when I said I'd mention 'particularly disturbing'; Ghost is a disturbed man who is violent, hard-core soldier... and very sexually dominant. By which I mean rapist who chooses not to engage in rape... mostly, in a kinda-sorta way.) Ghost, Kildar, Choosers of the Slain, Unto the Breach (I love this book, specifically some scenes later one where the terrorists learn the true meaning of terror... by dieing. AER KELDAR!), A Deeper Blue
Looking Glass: Into the Looking Glass, Vorpal Blade, Manxome Foe, Claws that Catch
Non Series: Von Nueman's War, Princess of Wands (this one has strongly influenced my Redemption / Guardian universe, not that that's shown up yet)
OK, so I love these guys... sorry to write a mini essay on them!