been looking at the advantages to these, whether to get the better option or save money..
250gb slim would be good as it's quiet and the built in wireless but £190 price tag puts me off a bit
Still cheaper than a PS3. £190 is not a lot for what you get tbh.
Although it depends on if you will benefit from a larger HDD, will you want to download demos and videos from the Live Marketplace?
Will you want it wireless?
If you answer no to both then get the original. However make sure it's a new one from a shop so you get the full standard warranty (1 year all parts + 2 extra years on RROD).
As for the noise of the console, bare in mind that you can install games onto the HDD so that the console runs quieter when playing, trust me, this will be a Godsend if you get the older console.
