Hey,
The offer of 450 Euros might be a bit pricey...I saw three cards x1 d24 (same as mix core w/o DSP) and x2 DSP Farms for 100 Euros. The 888/24 interfaces usually go for almost nothing, going for 25-30 pounds a pop. They do have bad reputation on the forums...that might explain it!
You have many options, if you need hardware DSP you can go to ProTools or Ensoniq Paris Pro. I would recommend the latter, excellent included effects ranging from compressors to some *stunning* EQ.
You also have specialized DSP cards that work with several DAWs (TC Powercore PCI, amongst others). Also, you have excellent firewire interfaces from MOTU and the Nuendo Audiolink mobile or desktop recording system.
How many inputs/outputs do you need? Will you be mixing in the box? If so, do you use a lot of plugins?
Let me know and we will figure something out!
Best,
- MusicWorks
P.S.I love Pro Tools, but it has a boring interface