Ok so I ordered my GFX Card (9400 GT 1GB 128-bit) and I know I have the power and PCI slot needed...what I failed to see till literally JUST recently..is the 128-bit part....

PROBLEM...
Im not sure if this is right but its the closest Ive seen. Display (Color) Highest-32 Bit...

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See what Im seeing? Can my computer support the 128-bit card? I mean Its less colors so it should just have a function to lower it right? Im so confused. The card is bought so Im screwed either way... I know my screen can handle it..(24 Inch ASUS HDMI Compatible) But can my tower? And if it cant stock...what can I do?

128 bit refers to the memory, not the display colors. Don't worry.

it should work without a problem.

The 128-bit part refers to the memory bus. Think of the bus as a pipe, the wider the pipe, the more information can be sent down it at once. Here's a short article explaining it. You will be fine, nothing to worry about.