new computer - keep me from making a mistake

[joedot]

Am I making a mistake going cheap here?

Ready to buy the Dimension 3000 with:

Price: $369
Celeron 2.4
256 MB
40 gb hdd

Then I'm getting the 2001fp LCD

I figured that the system is good enough that I won't care, and the monitor is the really important thing for my use. Would you say I'm making a mistake and will regret this, or is it all good? Gracias