My mage just maxed out Intelligence and his major skills will follow soon.

Now I think it would be nice to go beyond that and I'm looking for a MOD that offsets the limit. I already use enchanted gear.

http://mw.modhistory.com/download-84-6955 seems to fit, but it also changes various mechanisms in the leveling system. It's also important that I can apply this MOD on my current character.

What MOD is the best, what MOD are You using and what would You recommend?

There are just so many different versions of GCD and I run an allready heavy modded game and can't predict how difficult it is to set it up.

Thanks.

One possibility - Morrowind Code Patch MCP. It allows you to uncap the maximums. WARNING - doing so may affect other mods such as magicka regen mods that use those things. For example, uncapping skills/attributes in MCP does mess up GCD. IIRC, there's been some discussion in this forum about the topic, so you'll have to search the forums about it or maybe the MCP thread itself.

I am runnig MSGO and it includes the MCP. I will have a closer look at this, Thank You JH2011.

There's also http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=5316 but don't use it with the MCP tweak. AFAIK, it exploits some quirks of the Morrowind engine to work its magic. There're fair number of patches (albeit for older mods) included. I have added some information about it into http://www.gamesas.com/topic/1398805-relz-mlox-a-tool-for-anolyzing-and-sorting-your-load-order/ so it's always worth running that to see if it highlights any inconsistencies or issues with the rest of your mod list.