Here's my list of the mods I use. There are many hundreds more available and it's kind of hard to go into detail unless you can tell me exactly what you want from your game.
Current Mods:
GWX 3.0
GWX 3 Wil, St Naz and Schluese and other units - Bigboywooly
GWX Community Units
Das Boot Officers - AIL
Small Moon - AIL
Das Boot Sound Mod SH3
DBSM SH3 Speech Fix
Ultimate Aircraft Sounds
Spirit of Machines - Einbecker
Torpedo Fire (German) v1.02 - Ktl_KUrtz
No Rank Or Medals On Crew - Dertien
Remove GWX Compass - ichso
Simfeeling 6-Dials Mod - FLB_ U-999
Clean Nav Map
Assisted Plotting Mod
English-To-German Names - Phoenix3000
Historically Accurate U-Boat Emblems - Conus
Halo Not Visible Through Body - Anvart
New Compass Graphics U-505 - Hitman
Port People - Pascal
My Favorite Uniforms - New Uniforms and Das Boot Clothes
Realistic Blueprint Damage Screens - Pascal
Remove Station Labels
SH3 Color Icons - Capt. Teach
Waterstream+Exhaust Kombimod v2.3 - Rubini/Racerboy/h.sie
Modified Searchlight Beams - OLC
U-Boat Bases Map with New St. Nazaire - meduza
Lifeboats & Debris v4 - Rubini/Privateer
Open Hatch v3.09 - Diving Duck
Open Hatch Conning Deck Cam Fix - Diving Duck
Conning Tower Open Hatch - Lucagaeta
Open Hatch for Type II - postalbyke
SH4 Maptools for SH3 - Racerboy (aka TheDarkWraith)
Head 04 Fix - Anvart
SH3 Officer Faces
Aces' Modified Headphones
Alex Do-24
Aces' Crew On Deck Stand Alone GWX
Aces' Radio Room Postcards
SH5 Water for GWX 0.9 20 Km -
TMTv2+ThomsensShips v4.4 for GWX3+Xtra ships
GWX DFa Flags and Pennants 2010 - Anvart
Clearsky Clouds - Rubini
FM30_UpDown - Anvart
FM New Interior - FlakMonkey
FM NI Fix for FM30 UpDown - FlakMonkey
Conning Tower Open Hatch
Aces Multimod Compatability Fix v1.3 release - Aces
SH4 Effects for SH3 - Racerboy/TheDarkWraith
Torpedo Damage Final -
Tuddley's Barracks Screen
h.sie's Colored Hull Integrity Indicator
Ricks GWX Rec Manual Final
Aces' St. Nazair Super Pens v5.1 GWX
Wooden_Lifeboats_Mod-1.1 - Iambecomelife
Decks Awash + Fuel Economy - Wreford-Brown
Extras for Wilhelmshaven Campaign - Wreford-Brown
Type IIa Tuneup Dark
VIIB Early War Skin -
New Freecam Mod - Asanovic7
No Continuous 'Ship Spotted'
Seabed Repair Mod
Searchlights Removed -
Sober's 3D Waves - Sober
Type IIa Flags & Pennants - Anvart
Type VIIa Features - Wreford-Brown
Type IIb AI Camo - Sean (changed to IIA)
Always reinstall My SH3 Files
Cameras
Commands_en
Dials
Tools
SH3 Commander - JScones
SH3 Weather - Sqweetis
SH3 Contacts - Nicolás
[edit] Try this thread.
http://www.subsim.com/radioroom/showthread.php?t=170090