Put the keyword [APPRAISAL] in the title of your post.
Believe it or not for bencher's that 775 motherboard is very desirable. Some would pay more for it if you find the right buyer, but priced to sell here's what is basically market price...
Motherboard: GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX - $55
CPU: Intel Pentium E5300 Wolfdale 2.6GHz LGA 775 65W Dual-Core Desktop Processor - $20
RAM: G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) - $12 (Really need to know the exact model number, there are some sticks that sell for a lot more than others)
Video Card: HIS H467QS1GH Radeon HD 4670 1GB 128-bit DDR3 - $25
So you got about $112-$115 worth of parts there. If someone were to offer you $100 for the lot you should probably take it.