If I were I'd go for one of these:
http://cgi.ebay.com/GREY-PEAVEY-5-STRING-DYNA-BASS-GUITAR-W-HARDSHELL-CASE_W0QQitemZ320398191096QQcmdZViewItemQQptZGuitar?hash=item4a993869f8&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A1|294%3A50
http://cgi.ebay.com/Tobias-MTD-Pass...r?hash=item19b29ef034&_trksid=p3286.m20.l1116
http://cgi.ebay.com/Yamaha-TRB-Series-TRB1005-5-String-Electric-Bass-Guitar_W0QQitemZ250463638327QQcmdZViewItemQQptZGuitar?hash=item3a50cbd337&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A1|294%3A50
http://cgi.ebay.com/Carvin-XB75-5-String-Bass-active-extended-scale_W0QQitemZ280372491330QQcmdZViewItemQQptZGuitar?hash=item414780b442&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A1|294%3A50
If you want to go down the 6 string route I'd probably get one of these if I were you:
http://cgi.ebay.com/Yamaha-TRB-6II-6-six-string-bass-with-EMG-pickups_W0QQitemZ330345016011QQcmdZViewItemQQptZGuitar?hash=item4cea18eacb&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A1|294%3A50
http://cgi.ebay.com/Ibanez-Soundgear-SDGR-SR506TT-6-string-bass-guitar_W0QQitemZ180383479651QQcmdZViewItemQQptZGuitar?hash=item29ffb17763&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A4|294%3A50
http://cgi.ebay.com/Spector-Extreme-HZ-Fire-Electric-Bass-Guitar-6-String_W0QQitemZ270426618400QQcmdZViewItemQQptZGuitar?hash=item3ef6aeba20&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A1|294%3A50
http://cgi.ebay.com/DeArmond-Guild-Pilot-Deluxe-6-String-Bass-Six-Neck-Thru_W0QQitemZ320390407070QQcmdZViewItemQQptZGuitar?hash=item4a98c1a39e&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A6|294%3A50
I think all of these are better options than a Brice. But that's just my opinion.
If I were to get a 6er I'd go for the Yamaha (unless bidding goes above your budget and then Ibanez would've been my choice).
If you've changed your mind and now looking for a fiver as well I think any of the ones posted is a GREAT choice and they all feel and sound more than $400.
P.S You might want to look into a Peavey Grind 6er, I heard good things about them but never got to try one.