You may want to consider a distribution other than RHEL. RHEL is intended for corporate servers, so probably will have more limited driver support (not to mention services you probably don't need being enabled). If you like the Red Hat architecture, try Fedora (which is almost identical but geared towards workstations/desktops) or CentOS (which is Fedora with the licensing removed).
As for the driver issue, I've never used that card, but most likely it's just a generic driver that covers the Intel family. You will not want to use nvidia, nv, ati, s3, or tnt drivers for your current card. Good luck!