@LoBai
The Amiga 4000T is likely the best Amiga 680x0 made. Some argue the A3000, because of the build in flicker fixer. However the A3000 is too tight to expand inside, while A4000T has plenty of room.
Either way you'll be happy. The accelerator is a bit tough to find these days. But perhaps the new GVP ones from softhut might do? The 68060 is plenty speed (unless you can find PPC but thats risky sometimes-thinking Phase 5)
http://www.softhut.com/cgi-bin/test/Web_store/web_store.cgi?page=catalog/hardware/accelerators/gvp-m_index.html&cart_id=1632523_2641http://www.softhut.com/cgi-bin/test/Web_store/web_store.cgi?page=catalog/hardware/accelerators/gvp-m_4060DT.html&cart_id=1632523_2641The GVP one should fit (it resembles the old CBM68040 board), but check with Joe of Softhut first for some photos.
I do strongly recommend putting a low-profile heatsink on the ALICE chip, which is known to get hot on all A1200/4000 series.
And you likely will need an external flicker fixer (the white, external indivison ones by individual computers, lots of people offloading them), graphics card such as cybervision, network card such as xsurf.
If you need the heatsink or kickroms drop us an email:
support@nishtek.comWe also have a few spare 68060 CPUs for backup. you might drop us an email anyway, as we're compiling list of A4000T users, those that may want to upgrade the machine (internal flicker fixer if enough interest exist) and the occasional parts for it.
have fun.