a decent SSD should have a noticable speed boost in any computer system really
But not that impressive if it's forced to run in ATA.
You would be pushed to tell the difference between a SSD running in IDE mode v AHCI mode unless doing Benchmarks. Im running an OCZ Vertex 2E on IDE mode and it still runs like a bat out of hell.
They actually look very nice for our budget, with my main requirements being met, but my only question really was "do they support AHCI mode?". We could then consider putting in SSD's if we have the budget for it.
Unfortunately the Dell website doesn't state whether it does or not. I'd imagine it does being a relatively modern laptop, but would rather be sure.