The celeron was an amazing processor back in the days of the PII. Once the P4 came out, they started severely castrating the celerons to the point that they were no longer very desireable as far as performance goes.
Since the almighty Dell computer company doesn't like AMD very much as is in bed with intel, your only option for an entry level system will be to buy a celeron if you decide to go the Dell route.
I would suggest paying a visit to a reputable local computer shop and buy this:
- ASUS A7N8X (get the deluxe if you need firewire and all the goodies)
- AMD Athlon XP2500+ Barton
- 1 or 2 512MB sticks of PC3200 memory
With 128kb L1 cache and 512kb L2 cache, you will have more than quadruple the cache memory of the celeron. The XP2500+ is clocked at 1.83ghz, which will beat even a P4 clocked at 2.3ghz. It will eat the celeron for breakfast. This doesn't even take overclocking into account.
Benchmarks...hmm...I'm pretty sure Tom's Hardware Guide (gasp) has an extensive list of virtually all cpus from the PII to present comparatively benchmarked. Check it out. I would guess that even an Athlon Tbird 1.2ghz could beat the celery.
Tom's Hardware Linkification