this is still a work in progress placment design will chang to look like hardware listed
When I hear the name Nvidia I think of graphics, so I think a cool mod would be an Nvidia graphics card.
The picture shown has enough space for the Motherboard, 2 hard drives and 1 optical drive.
When the case cover is on the spot where the fan would normally be is clear acrylic so you can see the disk spin.
The list of items (web links) below are all from Newegg website and the Total amount without tax would be $488.96
ZOTAC IONITX-A-U Atom N330 1.6GHz Dual-Core 441 NVIDIA ION Mini ITX Motherboard/CPU Combo
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL5D-4GBPQ
Western Digital Scorpio Black WD3200BEKT 320GB 7200 RPM 16MB Cache 2.5" SATA 3.0Gb/s Internal Notebook Hard Drive
LITE-ON Black 4X BD-R 12X DVD+R 4X BD-ROM SATA Internal Blu-ray Burner 4X Blu-ray Disc Triple DVD Burner Model DH-4B1S-13-VAC