Soon you can expect a really big mod for all the friends of Liberty City! "Chris Benoit!" is currently working on a project called Liberty City 2 San Andreas. In the first version of San Andreas will be replaced by the city from GTA III, but be in a later version of San Andreas and Liberty City co-exist on the Map! Also a lot of traffic will prevail in a future version on the streets of Liberty City. To this end, numerous cars from GTA III to be converted and adapted to the quality standards of San Andreas. First images you can admire here:
As soon as the mod is available, you will get notified here. More Information to the project can be found in this Forum-Thread.