Hi, Did you think about implementing a paging algorithm (LRU, clock page replacement) ? As for the dispose, I recommend that in your dispose you set the memebers to null where possible for faster memory reclaims.
I ended up using a combination of a queue and access counters. Whenever an object is accessed, I call GC.GetTotalMemory() to determine how many objects to de-reference. Anyway, this thread has nothing to do with Dispose.
