Do you think it would be better for me to go for a 250GB HDD or the 60GB SSD? Would I see a large performance boost with the SSD or would it not really help a lot?
You would. Most of the SSD performance comes from the near-zero latency since the seek time is essentially eliminated thanks to doing away with moving parts. In everyday usage, latency is far more important than the maximum bandwidth, so the apparent system performance in nearly all disc I/O bound scenarios would be far more than the quoted 150% (when compared to a mechanical HD). The only thing where the bandwidth really matters (enough to be a valid point for comparison) is moving around large volumes of files, but even then you would still have the extra ~50% (and less noise & power consumption).
Having said that, I would still recommend a bigger hard drive if you're using Windows, though, living with only 60GB can be hard and depending on your CPU power, application load times (one of the things that SSDs have a tremendous impact on, regardless of bandwidth) might become CPU bound, diminishing the potential benefits somewhat, so it might not yet be worth the money.
