midi knob box/midi 2 din sync recommendations

[mindgame]

you guys recommended teh yamahaa rm1x and it was great so i would trust your judgement/opinions..

i am looking for 2 things..

1 - a good midi knob box . . this site had a few but i was looking for anyones opinio0ns on actual user use...any good recommendations. ???? these ones look kool but thats about all i got..
http://www.analogue.org/network/midicbox.htm

2 - a midi to din sync converter box. there was a site www.dinsync.com that sold them but it seems to be down now..
looking to trigger my tb-303 with midi controllers (keyboard/sequencer/drum machines etc.) i have a 707 but would like to use other options as well.
any specific brands or sites you can recommend? i only need 1 or 2in and outs..
(midi INPUT to din sync OUTPUT to go into the 303 din sync inputs i guess.)

any help is appreciated...thanks