33MB Perm Space, 11MB Heap after startup, thats with most of the functionallity to support the UX project.
See attached from yourkit of the startup,
T F D
Open Source Open Thought
Planet Apache
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T F D 
Oh yes, forgot to mention, after adding 1K users, uploading 2G of data in 3000 files and then running multiple finds on that… the heap is at 38M, and perm space has risen to 42M. That load was generated with Apache Benchmark, which gives most request < 2ms, an at least 50% of all request <1ms