Well here's the problem: The game used to crash maybe once every 30 minutes, and now it's suddenly crashing every 30 seconds to 1 minute. In between this transition, I did not add any mods to my load list. Here's my load order:

Oblivion.esmCM Partners.esmArmamentarium.esmHorseCombatMaster.esmMart's Monster Mod.esmOscuro's_Oblivion_Overhaul.esmGTAesgaard_2.esmWindfall.esmDLCShiveringIsles.espUnofficial Oblivion Patch.espbgBalancingEVCore.espSlof's Oblivion Robe Trader.espSlof's Robe of the Dark Arts.espArmamentariumLL4OOO.espArmamentariumLLMagicOOO.espAtmospheric Oblivion.espbgBalancingEVLAMEAddition.espbgBalancingEVLAMEGlue.espbgBalancingEVOptionalFCOMAdditions.espbgBalancingEVOptionalNPCDiversityLAME.espbgBalancingEVOptionalSeamReducerHighElfFix.espbgBalancingOptionalLessHealth.espbgIntegrationEV.espbgMagicAlchemy.espbgMagicBonus.espbgMagicEV.espbgMagicEVAddEnVar.espbgMagicEVPaperChase.espbgMagicEVShader.espbgMagicEVStartspells.espbgMagicItemSigil.espbgMagicLightningbolt.espbgMagicPotionNumberSoulGemValue.espbgMagicShaderLifeDetect.espDeadly Reflex 5 - Timed block and 150% damage.espDeadlyReflex 5 - Combat Moves.espLet There Be Darkness - Cyrodiil + SI.espLet There Be Darkness - Knights.espMart's Monster Mod - City Defences.espMart's Monster Mod - Diverse Creature Skins.espMart's Monster Mod - Diverse Imperial Armor.espMart's Monster Mod - Looting NPCs & Creatures.espMart's Monster Mod - More Wilderness Life.espMart's Monster Mod for OOO.espQuest Award Leveller.espQuest Award Leveller - Knights of the Nine.espsycHearNoEvil.espOscuro's_Oblivion_Overhaul.espRenGuardOverhaul.espRenGuardOverhaulShiveringIsles.espBag of Holding.espCyrodiil Travel Services.espExpanded Hotkeys and Spell Delete v1.0.espExpanded Hotkeys Brief Equip Message.espP1DkeyChain.espAudaciousMagery.espMidasSpells.espAdenseEpicDungeon1_5.espGates To Aesgaard 2 Delayer.espGTAesgaard.espGTAesgaard_2.espHeartOftheDead.espKnights.espMalevolent.espServant of the Dawn.espTheOubliette.espWindfall.esp

Any help would be greatly appreciated, and thanks in advance =)

You are missing the MMMforOOO ESM

http://sites.google.com/site/oblivionpoinfo/finishinstall
http://sites.google.com/site/oblivionpoinfo/finishinstall/loadorder
http://sites.google.com/site/oblivionpoinfo/finishinstall/bashedpatch

Your load or is a MESS. Use BOSS to sort it.
Also use Wrye Bash to make a Bashed Patch. That will cut down the number of conflicts.

You need to upgrade MMM as well because Mart's Monster Mod - Diverse Imperial Armor.esp is outdated. To upgrade to the latest version of MMM, you have to do a clean install of MMM and OOO. Uninstall them entirely and then install OOO 1.33 topped with OOO 1.34b5 and MMM 3.7b3.

http://sites.google.com/site/oblivionpoinfo/walkthroughs/mmmooo