The quick question in the title a little clarified in detail:

I'm about to bring my homerecording setup into a more functional shape. Computer-wise, I'm using XP and Cubase SX3. All prices are German street prices, in case you wonder...

For an interface, I have nearly settled on a PreSonus Firestudio (€777), together with the MSR (€189).

In the past, I have been using a RME Multiface I together with a PCMCIA cardbus interface for my laptop, and I also have a SPL GoldMike in operation, so that got me thinking:

Should I a) get the Firestudio as planned, and more or less retire the RME (or keep it for laptop jobs), or should I get a set of pres (4 or 8) for the RME and keep using it, either b) with RMEs PCIe interface card (€319) or c) putting the PCMCIA adapter into an PCMCIA to PCIe interface (roughly €30)?

What we have:
a) €777
b) €319, leaving €458 for the pres
c) €30, leaving €747 for the pres.

Of course, I'm not unhappy if I spend even less than the €777 in total (or €968 with remote).

Any ideas and suggestions (both with regard to which solution to choose and if b) or c) which pres to get)