Well I just registered on the forums JUST to reply to this topic that i saw while browsing reading about the CQ50.
Recently, I ordered a cq50 off the HP website, and because i live in the states i cant give a number in the currency you guys are saying, but for me it was about 430$ without tax.
Though I havn't received it yet, i believe the CQ50 will outperform the 1525.
The CQ50 has a better gpu, the 8200m is much better than the x3100 even though neither are amazing.
Also, I wouldn't worry about ram because 3 gigs is more than enough to run photoshop and all of the programs you are stating.
Personally, I'm going to dual boot myself windows xp for better performance, as I dislike vista.
I actually had to choose between the two also, and i decided to order the compaq because overall, I would rather have it built by hp than dell, and it had higher specs, for a cheaper price.
Also, I wouldn't worry about the amount of time it lasts, because if you are able to keep it clean, and treat it right, it should last you a while.
When i get mine in, I can tell you what i think about it and how good it actually runs Counter-Strike: Source which is mainly what i play.
I hope i was of some help, and will check up on this topic now and then.
Peace