Well, you've got be by about 20 years
I'd probably be categorized as a semi-serious home hobbyist, but I've been doing computer recording for about 8 years.
As I'm not familiar with the machine, (though I wish I was) I'll assume that "recording amps" are pre-amps and generate a standard line level signal (obviously not power-amplified - that'd blow the hell out of your sound card).
This being the case, it'd probably be a great idea. I'm sure that they're nice vintage preamps that sound beautiful.
Something to keep in mind, though, if you're used to the quality of a 1" reel, you're probably going to be dissapointed by the quality of your soundblaster. The sound card's job of converting analog to digital is a huge factor in the quality of your sound. While the soundblaster is considered "okay" for beginners, I don't believe you'd fit that category.
If you're in the "digital discovery" stage of computer recording, have at it. If worst comes to worst and your sound card gets blown, it'll give you an excuse to get a pro card.