No use the one database, depending on how you have designed it two tables may be appropriate - its not the way I suspect many experts would have done so, but there y'go.
as regards cost, that is always a limiter in web sites, still I reckon its had to beat the cost of MySQL especailly on a web site. PS MySQL is free.
Depending on how many hits your site is getting then Access / JET may well be perfectly acceptable for your website. Its definatley note appropriate for a major E-Commerce site, selling millions of pounds of goods a day, but if its a realtively small site then JET's limitations may be obervable.
you can run MySQL as a datastorage method within Access
I'd suggest you talk to your ISP and see what they reccommend. They may well have price plans that include MySQL or even SQL Lite (SQL Lite is a sort of competitor to JET). Heck with 8000 rows you may not even need SQL at all, a flat file may be good enough.
I'd rather be riding on the Tiger 800 or the Norton