vivo is video in/video out built into your normal (usually AGP) graphics card. Quality is variable on these, but some are very good.
Not all Freeview cards let you plug in anything but an aerial feed for the digital tv. Mine (twinhan/visionplus mini-ter) is an excellent freeview card, but that's all it does. As it happens, this box has that freeview card, firewire, an analogue tv tuner with composite and svideo, AND my video card has composite/svideo vivo, so i'm not short of ways to get video into this pc.
For £100 you'll be able to get a freeview card that will have composite/svideo in. That's your best bet if you're interested in both. I can't comment on the quality, mind you. It MIGHT be worth your while to buy a decent freeview card as well as another card that will facilitate analogue capture, separately, just in case you want to capture both analogue and digital simultaneously. I don't know if you CAN use both tuners on one of these cards at the same time.
AMD Athlon 1700 (@2200mhz from 1466 sod the noise!) - 768mb pc3200 - 200GB Maxtor - Pioneer 106 - GF4 Ti4200 - twinhan/visionplus pci dvb-t - random pci analogue tv tuner - A7v600-x (to replace the a7n8x-d that died...) - random 17\" CRT
Sony STR-DE425 & Eltax c205s;
xBox w/20GB HDD- executer 2.3b;
xBox - standard;
Konica/Minolta dimage z10 w/2x512mb SD;
A silly amount of Cat-5 and usb cables