7000 is a PCI card. You can use it along side your AGP 9000. Or get a 9600 with TV out, but it's more expensive. 9800 is even more expensive, but a lot faster. There are VGA to TV converters, but most of them are about the same cost as a 7000.
The 9200 PCI is even better, but it's $120. You can also run it alongside the AGP 9000.