Dual boot OpenSuSE and RHEL4 with the same network user

[Digdis]

This is a bit of an unusual question, but here it goes:
Been using OpenSuSE 10.1 on my work PC, and have been very happy with it. The thing is that one of the applications I need to run on it (the WindRiver Workbench environment) is officially supported only on Enterprise distributions like Red Hat or Enterprise SuSE. It was unofficially tested with free distributions as well (namely Fedora & OpenSuSE), and I have been running it successfully on my OpenSuSE machine, but I won't get any support when running it on OpenSuSE.
Now I would upgrade to Enterprise SuSE, but my company has only RedHat EL4 which I don't like. Not that I need any support from our IT people (managed pretty good without their help), but the support for the application can be an issue.
Before giving up, I thought of the following idea: As both my user and home directory are on the network, and the work applications are installed in the home directory, I thought I might be able to install RHEL4 on my machine as well, and have it dual boot SuSE & RHEL4. My network user and home directory stay the same, as well as the application, and I can keep using OpenSuSE except for the cases I will need support for the application.
I know I may be doing some extra work (installing drivers twice etc.), but I'm ready to pay the price. Question is whether the outcomes of such a thing are bearable, or I'm entering myself into some deep s...
Note that I don't use the station for net surfing, mail, office etc. - I have another Windows PC for this stuff.
D.

[Digdis]

Just to add to that:
I guess that what I'm worried about most is the personal settings under my home directory, and specially compatibilty issues between the distros. For example: I run KDE as my desktop manager, but if the KDEs of RHEL4 and SuSE 10.1 have different versions (do they?), then I guess there will be problems. A possible solution for these things would be to duplicate the setup dot directories with different names (say .kde-suse and .kde-rhel), and set up symbolic links (.kde here) at the very early login stage solve these problems? If so - what is the best place to put this hack?

Can you think of other problems I might be facing?